Perfect Number
It stopped raining
It's a bit cold today, Yoon-Ah
What are we going to do with this?
Oh, no
Hope it's not dead
"No, it's not. Leave it, I'II take care of it Iater"
- See you - Ok
See you
GOOD MORNING Take-out
Good Morning Lunchbox to go, right?
Yes
It's our new dish PIease try it.
Oh...
thank you Have a good day
Good morning!
One Hand Roll, please
the Good Morning Lunch guy who comes in every day
I think he Iikes you
You noticed it too?
You know how guys are just so attracted to me
You surely can talk
Why don't you go on a date with him?
You know I have Yoon-ah
What about her? She's in middle school
She won't oppose if you get married
I won't see anyone until Yoon-ah gets married
And I don't really Iike dorky guys
the nth triangular number is n(n+1)/ 2
the proof of this formula S is sigma K equals one to n
n- 2, n+1...
Who the hell cares about those stupid formulas?
Why don't you play it?
Don't just pick chords
What?
If that's a note C
If you playthe twelfth fret What note is it?
It's a C, an octave higher
If you play a C and G together, what do you get?
that's a C chord
that's correct
It's also called the perfect fifth
because it's perfectly consonant
Music is
It all sounds different to our ears
But it's only a matter of how to assemble
chords in consonance
Of course, notes Iike C, D, and E already have existed
Iike numbers 1, 2, and 3
the person who found out the relationship
between these individual notes and made formulas called chords
- Is Pythagoras - Doped-goras
this triangular number we are studying right now
Pythagoras discovered it
I'm home
Auntie...
Yoon-ah!
- What's wrong? - I feel sick
Sick where? Oh my goodness
Hold on
Yoon-ah
Excuse me!
- What's wrong? - I'm not sure
Doctor
What are the symptoms?
Her breath is irregular Fast and slow
She's having a cardiac arrest
CIear the airway and prepare CPR
- Yoon-ah! - PIease step aside
Lift your head
You alright?
Ma'am this is medicine...
the man you came with Ieft it for you
Oh
Good Morning Lunchbox to go, Right?
Yes
It's the hospital bill you paid Iast night
PIease take it
Yes
this Iunchbox is the interest
Yoon-ah Iikes math unlike other girls
You're a math teacher, Right?
Yes
What was that?
Nothing
- there's something - You told me to date him
thought you said you don't Iike dorky guys
Something must've happened
Is he free-diving?
Beginners should nevertry it
Yes
Fucking asshole
Son of a bitch
You Iaughing? Die, bitch!
Die asshole! I'm going to kill you
Asshole! Don't Iaugh!
Is that you, Yoon-ah? Where's your key?
thought I couldn't find you?
Fucking bitch
You bitch
thought you could run away?
You sleep well?
thought you can Iive without me?
No fucking beer?
Get up and sit down, you bitch
Girl, I went all overtown
every bar and club in Daejeon
Leave us alone please
Leave you alone? Fuck me.
Auntie, your daughter's home
Hi, Yoon-ah
You've grown up beautifully
Your daughter'? that's some fucked up family tree
Come in. Go inside
Come say hello to your uncle
You Iittle bitch!
Don't yell at her
tomorrow, I'II wire you every penny I have
Yoon-ah
Let me see your face
- Wow, very scary - What are you doing?
Go away
Look at her boobs
Just Ieave! Damn, Ieave her alone!
What? Let's have fun
this is nice and fresh
I'm going to kill you
Oh yeah? Let's die. Let's do that
AIright, fucking kill me
Stay still
Fuck yeah
You fucking bitch
Fucking slut
Fucking bitch
Yoon-ah
Fucking bitch! Move
Come here bitch!
"- Stop! - Come here, fucking bitch"
Let go of me
- Auntie! - Where you going, bitch?
Stop! Don't hurt her
Fuck
Is this funny?
Oh my god
Auntie
He must be dead
Who is it?
It's next door
Hold on, please
Don't come out
Yes?
Umm...
Are you alright?
What?
Yes. I'm fine
I heard some noise
A roach
there was a roach
Did you kill it?
What?
the roach
Oh, yes
I killed it
I see
Auntie
Are you going to call the police?
the police?
No
I will turn myself in
I have to turn myself in too, don't I?
What are you talking about it?
Why?
I hit him first
And I held him so he wouldn't move
Don't even think about it
No way
You were in your room
You didn't see anything Got it?
I think I can be of help
It won't be too Iate to call the police afteryou hear me first
Who is he?
It's my ex-husband
He tortured my aunt everyday
- He threatened her - Yoon-ah
Are you going to turn yourself in?
Yes
No, auntie
If you go to jail, I'm going to be all alone
No, auntie
Yoon-ah
You two did it together
No. I did it alone
She didn't see anything
She came after I killed him, seriously
the bite mark
Whose is that?
I did it all
It's impossible foryou to strangle him and hold his hands at the same time
Will the police find out?
theywill know betterthan me
No, not myYoon-ah Oh, no
If you turn yourself in there are extenuating circumstances
But you might have to do some time
Yoon-ah might not get off clean either
You might not be able to think clearly now
but if you Iet me help you
I'II protect you two no matter what
Was he supposed to come?
Did you plan to meet him here?
No, he came unexpectedly
Did he call you?
He doesn't know my number
I'm sorry
By any chance,
do you go see movies often?
Mang-won district near Han river Dead body found, calling for back-up
Hey guys
that head is Iike a rotten watermelon
Do you think you'II get something?
Look here
the fingerprints are destroyed
It might take up to 2-3 weeks to identify the body
- 2-3 weeks? - Yes
What kind of Iunatic did this?
the asshole grinded the body to hide the victim's identity
the killer is an acquaintance Perhaps, the closest person to the victim
So what?
We can't even ID the victim What good does that do?
What now?
Are you going to fool around until forensics come out?
the face is smashed so badly I don't think we can match a dental record
I don't know if you can ID the body
You're really good at making people feel worse
that's a real talent
Don't step around there
this is going to suck
the onlything we have is the bodywith two balls
the disposal of the body seems too timid to be a psychopath's job
the tires are all flat Is it abandoned?
Lift that
Is that a key?
JINSUNG Inn
Guess the bastard was in a real hurry to make a mistake Iike that
He didn't pay and Ieft his stuff
I was going to call the police
Have you seen any visitors?
No idea
there are so many who come and go
the victim is 36 year old male Iiving in Daejeon
the name is Kim Cheol-min
It's fortunate you found it
the victim was staying in a motel just before the murder, since November 7th
Luckily, we found the motel key at the scene
the DNA from the hair in the motel matched the body's DNA
Cause of death?
According to the autopsy, he was killed by strangulation
We found a consistent pattern of an electric wire used in heating devices on the victim's neck
We analyzed it as the electric wire often used in irons
Irons?
Estimated time of death?
We estimated it as November 9th in between 4 P.M. and 1 1 P.M.
So the victim was walking alive before 4 P.M. on the 9th
- Correct? - Yes
"to be exact, he was alive till 736"
Based on what?
We found an abandoned self-service rental bicycle on the scene
Self-service bicycles?
You can easily rent the public bicycles by entering your resident registration number
It was rented from a kiosk in Sang-am district
It was rented with Kim Cheol-min's resident number
Really?
So you have a suspect?
Considering the travel path and radius,
Kim Cheol-min's ex-wife, Baek Hwa-sun is our prime suspect
the reason is?
Now, we need to find out
thank you
Kim Cheol-min was found dead
He was brutally murdered
We had some trouble Iocating you because your address was changed
According to the registration files, he doesn't have any relatives
Do you know of any distant relatives?
I don't think he has any
I see
When did you meet him Iast?
I haven't seen him since I moved to Seoul
You haven't talked to him during the recent months?
No
If you don't mind what did you do on the 9th?
Pardon?
November 9th
I worked
And afteryou got off?
I took my niece to a movie
Guess it was a nice outing for a change
What's wrong with your hands?
What?
Your hands...
I got hurt at work
When?
A few days ago
Hello
It's me from next door
The detectives were here this afternoon
I did as you told me
Ok. they're coming for Yoon-ah soon
Okay
What did you do to it?
How did they find out so quickly? Did they find the body?
Just answer Iike a machine only to the questions asked
They might be watching you from near
So even if we bump into each other, act Iike usual neighbors
I'II warn Yoon-ah also
Did you tell them about the movie tickets?
No
You told me not to show them until I was asked
Where did you put the tickets?
In my wallet
No, no
the movie flyer, fold it in half and put the tickets inside
Not many people keep movie tickets
They might get suspicious if you take them out from your wallet
Okay
I will
I'II always call you around this time
I was wondering...
Yes?
If we really should do this
You have to trust me
AIright
the only family she has is her niece
She wanted to Iive out her sister's dreams
She was going to raise Yoon-ah for her sister
It is so sweet of her I admire her
So she Ieft town
Did Kim Cheol-min come here recently?
About a week ago
He went crazy here trying to get Hwa-sun's whereabouts
So did you tell him where she was?
Are you insane?
What did he do this time? Is he in trouble again?
He was murdered
Whoever did it, I am grateful
Hwa-sun will finally get some sleep at night A real good sleep
thank you
You said you saw a movie with your niece on November 9th
Do you have the tickets by any chance?
Pardon?
the movie tickets
No, I don't
Oh
I have this though
Movie tickets
For November 9th
You sawthis movie?
Detective Jo, what's with you?
Why are you keep insisting Baek Hwa-sun is the killer?
She has a clear motive for murder
And her hands It's due to strained Iigaments
You saw the scar on victim's neck
When you choke someone to death
with a thin wire, you will get a sprain
that's a coincidence
there's no such thing as a coincidence to a detective
Isn't it too perfect to find tickets in between a flyerfrom the recycling bin?
What's wrong with perfect?
When are you going to become a real detective?
From now on, it's about who cracks down first
Put out the cigarette
Let me warm up with it
No
It's cold
turn off the engine, idiot
What's wrong with you, stupid?
Baek Hwa-sun
I think the cops are watching right now
Here
Isn't that the guy who went in first?
I think so
Pizza
Movies
It's all here
How did you end up watching a movie with your aunt?
You're in middle school Don't you have a Iot of friends?
Guess you're very close to your aunt
She Iistens well too, right? She'II do whatever her aunt tells
Anybody can use a credit card
I didn't use her card She never gave it to me
Really?
So your aunt used it?
Yes
thanks for the drink
What is wrong?
Wait
What are you doing?
Excuse me...
You...?
Cheers
I can't believe I ran into you here this is so weird
It's good to see you
Hey, do you remember...
the woman Iiving next door to you
that case I told you earlier
She's the prime suspect
She has an alibi but an alibi is there to be broken
It could be
Okay
Get in
AIright. See you Iater
Okay
Oh!
Doped out Pythagoras!
Right?
Right, right
It's been a while Doped-goras
It was good to see you
What happened?
What did you tell the detectives?
they're probably still here
Here. Act natural as if taking something from me
Get inside
She was Iooking out the window the whole time
As if she was waiting
Of course
the guy next doorwas talking to a cop who thinks you're a suspect
Must be really nervous
I ran the credit card
"She bought the tickets exactly at 7:52"
So you believe Baek saw the movie
And on Kim Cheol-min's phone record
He ordered some Chinese on the 9th and nothing else
He has never talked to Baek
Ok. think of it this way
the niece could've swiped the card
and says she didn't
Even if Baek went there herself, there is plenty of time
But there's no proof that she didn't see the movie
Don't you dare Iook at me Iike that
So this is all about that... Goldbach's conjecture
Go where?
Goldbach, stupid
Like right now, there is suspicion but no evidence
It will drive you nuts
Did you get anything from your school friend?
Seok-go
Nothing interests him except for math
Math?
Have you ever seen a genius?
It's not divisible, it's a prime number
Yo, Kim Seok-go
Doped-goras
So you're a genius?
What are you going to do with your genius brain?
Prove
Prove? Prove what?
Have you ever heard of Goldbach's conjecture?
No way
So go on
Every even integer greater than 2 is the sum of two primes
true or false?
Nobody has solved it in 300 years
What do you think?
true
then it's done Do you must prove it?
If I don't prove it, I won't know the truth
I want to know the truth
the truth
You want to find the truth
By the way, making a problem no one can solve
or solving that problem
Which is harder?
You prove that How would I know?
Here. Lilac is the taste of Iove, true?
Prove that, say ""ahh"""
Good
If you want to prove it, chew it well
that is Iove, dude Bitter, huh?
We went to high school together
It's an unexpected variable but it's going as calculated
Don't worry
But you need to be more careful about such actions
I'II trust you completely from now on
Did the cops question Yoon-ah?
Yes. She said they were waiting outside the school
Can you get Yoon-ah on the phone?
Hold on
Hello
What did the cops ask you?
they showed me a picture and asked if I've met him recently
I told them I haven't
they asked again about going to the movies
What did you tell them?
I said I saw the movie on the 9th for sure
And I told them about my friend I ran into at the movies
Good. that's good, Yoon-ah
And one more thing
If they come again, don't be scared Just do as you're doing now
Okay, Yoon-ah?
I will
things are really happening as he said
Surveillance tapes from the theaters
Oh my head the moment finally has come
Don't be intimidated
Just watch the elevator camera
Detective Jo
Detective Jo!
Baek Hwa-sun
Did they come?
the two came they did come to the theaters
So the friend story is true
then...
I just need to find Baek Ieaving alone
they indeed saw the movie
Guys
What's wrong with you?
What are you doing?
Shouldn't you be asking around Kim Cheol-min's acquaintances?
Money problems, women problems Middle, high school friends
People from military service Co-workers
You
Don't go Iooking for motives Go find people with motives
Got that?
Got that? Answer me!
Yes, sir!
Captain
What, now what!
they want me to take the Iie detector test tomorrow
I don't think I can do it anymore
I should've turned myself in that day
I think it will be better to turn myself in right now
What would happen to Yoon-ah then?
No. Just do as you've been doing
You don't have to Iie
Don't worry about that
I don't know what's going on
Why is everybody asking about the 9th?
You don't need to know
the cops will soon find another suspect
You said you trusted me
that I'II protect you no matter what
I do I trust you
tomorrow will be the Iast crisis
PIease Iift the sleeve on your Ieft arm
I have a Iot of appointments today So Iet's do this quickly
Don't be nervous
From now on, answer ""no""" to my questions
Are you a man?
No
Is your name Baek Hwa-sun?
No
Good. We will start now
Has Kim Cheol-min ever come to your workplace?
Have you ever met Kim Cheol-min at your workplace?
No. I have not
You said you saw a movie on November 9th Is this true?
Yes
Did you watch the movie from the beginning to end?
Yes
Did you meet your ex-husband, Kim Cheol-min on November 9th?
Meet him?
Yes. On November 9th, did you meet Kim Cheol-min?
No. I did not
You didn't see him? Not even once that day?
No
there's no need to continue with the next question
thanks for your time
- Is it over? - Yes
Wait, you skipped an important question!
Ms. Baek Hwa-sun
Did you kill Kim Cheol-min?
Did you kill him?
Who the hell are you?
No. I didn't kill him
It's a Iie
What are you doing?
It says it's a Iie
You're not an examiner I won't accept this
Wait, don't turn it off!
Ask her one more time
Baek Hwa-sun, Did you kill Kim Cheol-min?
We won't be seeing you anymore Get home safely
Hey, Sang-joon
Come on.
Man...
It went well as you said
Okay, you did good
Let's eat
Why doesn't he call? It would be nice if he joined us
I didn't think about that
Yoon-ah
I'm sorry
Why?
I'm really super grateful to you Every single day
Yoon-ah, promise me
You have to forget everything
You have to go on
AIright. Don't worry
Can I eat now?
Yes
Hey
You saved them, right?
What?
My flowers
I know everything
Hey
You Iike my aunt that's why you helped us, right?
I wanted to thank you And my aunt waited for your call
Yoon-ah
Here's your order I'II help you with the bill
thank you
Bon appetit
What can I get you?
Sunshine Morning Lunchbox, please
Sunshine Morning?
thank you, Bon appetit
Good Morning Lunchbox to go?
Yes
You will have to eat something else today
I heard it's going to get colder starting tomorrow
CIear Morning Lunchbox, please
Yes
I'll never forget your care, I Thank you
Mr. Kim, I'II see you Iater
I see...Okay
I understand
Dude. Who killed you?
Dude!
Stop, stop, stop! She passed the polygraph
And the polygraph said she killed him
the examiner said anyone would do the same if you ask with that Iook
Look here, compare them to the other people
Do they Iook Iike they're enjoying an outing to the movies?
I know you don't want to accept
Are we going on a stakeout?
Welcome
Hey, Hwa-sun
I went to Daejeon the other day and heard the news from Madam Jung
Did the cops come see you?
they came a few times
I was worried that
you might be harassed for no good reason
I'm alright
If there's anything I can help
No. It's ok You've been helpful every time. thank you
It's raining
I'm alright
No. You might catch a cold
Woo-hoo! Who are you and where have you been?
take care. I'II call you Iater
No. I don't think...
I regretted Ietting you go Iike that
I won't do that anymore
Get in
Auntie, it's him calling
Hello
Was everything okay today?
Yes
Who was the man you came with?
I know him from where I used to work in Daejeon
I see
He Ioaned me some money before
He came to see me and I couldn't just make him Ieave
So we had tea
You don't have anything else to say?
then I'II call you tomorrow
What's wrong?
It's nothing
Hey, drenched Doped-goras!
Where have you been?
Look at all these books here
Look at these, you're hopeless
this math formula... It's sickening
You truly are doped out Pythagoras
Did you find the killer?
No. I'm totally screwed
Why?
Your next door neighbor She really screwed me up
I must be getting old
I was pretty good back in the days but now I'm a big mess
I'm Iooking for another suspect, but don't know where to Iook
Where is that fucker?
A mustache
Look at all these old notes
What is this?
Nothing. I was bored
Hey, this is Goldbach's conjecture
Are you still working on this?
Are you not going to drink?
I sure am
Are you getting some progress with this conjecture?
Right. that's why no one has proved it in several hundred years
this is difficult, conjecture...
You're right
My brain is getting dull, It's getting difficult
If I fail to prove it, I'II ask when I get up there
What?
Up there, He will knowthe truth
Whether Goldbach's conjecture is true orfalse
In the most beautiful and simplest proof
You, a philosopher Drink up
Hey, Seok-go Are you seeing anyone?
You?
I've been married for 3 years
AIso, it's been a year since I got divorced
Ugh, I really truly don't get it
You know what my wife said when she Ieft me?
She Ieft a famous Iine
Do you know what Iove is? She asked me that
She implied that I never truly Ioved her
But shit. think about it What is true?
what is real? What the fuck is real Iove? Shit
You said Iove is bitter
What?
You said Love is bitter
When did I say that?
Li...Lilac! Right?
You remembered that? You're a mathematician
Doped-goras is smart
I am so jealous of you, Kim Seok-go
You are awesome doing all this math
this is what's real, Mathematics
What the heck is the Perfect Number?
I'll never forget your care, Thank you
Are you up?
Yeah Hey, Iast night...
Why did I drink so much Iast night?
I didn't do anything weird, did I?
I feel really shitty
Good Iuck on yourtest Are you coming straight home after school?
-Yeah, see you Iater - See you
GOOD MORNING Take-out
You still go to this place?
Didn't I tell you?
I always buy my Iunch there
Don't you feel awkward? Eating Iunch prepared by a murder suspect?
though you wouldn't care about something Iike that
I'm going to wash up
I think I'm sobering up It's getting cold.
Go under? Okay under
Aren't they cold? It's not summer anymore
these people here are always the same Iike clockwork
So I've heard they are precise Iike a clock
We're always fast or slow Iiving Iife in a hurry
If we free ourselves from clocks, will we be more punctual?
Who is he staring at?
Bye
Hey
Aren't you going to pick up Iunch? You have to eat
Hello
No, no, no. I'm not a cop today I came as a customer
Okay
Let's see. What should I get?
What are you getting?
He always orders Good Morning Lunchbox
Okay then, two Good Morning Lunchboxes, please
Okay
Hey.
Did you find out? Hold on
Sorry but do you have a piece of paper?
Okay. So what?
Hold on
Sorry. the pen isn't working
Choi Chan-min?
010-3413-
728...7287
87 Correct? 87? Okay, be right over
thank you
Welcome
Hello Mr. Nam, you came again
Here you go
How much is it?
- It's 12 dollars - 12 dollars?
I stopped by on my way to work
I wanted to try the Iunchbox you make
You're busy from early in the morning
What should I get?
Aren't you Ieaving?
Oh yeah. I am
Do you go ice climbing?
I heard that is great
Heard the snaps on this thing is terrific
I don't do ice climbing but the customers have complimented on it
Excuse me, please Iook around
I...
I don't think we should see each other anymore
I came here to tell you that
I'm not saying we need to do anything right now
We have our own situations, so Iet's take it slow
Did you forget everything I've done for you?
Watch me
Watch what I will do
You're Iate
It's okay. No one's watching us
You were charged more this month for the water
What?
I hear some Ieaking sound at night I was wondering if you knew
You want me to fix it?
No, it's fine
AIright then
See you Iater
By the way
Your clothes seem gaudy today And your make-up is heavy
Detective Jo!
What are you doing out in the cold?
- I brought some hot... - Left the bicycle
Left the bicycle with flat tires here
Bicycles?
Meticulously destroyed the victim's face and fingerprints
but Ieft the victim's things on the scene
You're saying the killer Ieft the bicycle on purpose?
What if he did?
And tell us the time of the murder?
Whywould he do that?
to prove Baek's alibi
What?
In orderto prove Baek was in the theaters
when Kim Cheol-min arrived here
that's why the tires are flat
So no one can ride it
then the window of time for murder is spread out and Baek's alibi becomes insufficient
You still think Baek killed him?
What if
"Baek was at home in between 6 and 630"
And Kim Cheol-min was killed there
No way
How can she move the body from her house to here in 30 minutes?
She even has no car Did she grab a taxi?
AIso, she had to rent the bicycle She can't do all that by herself
It's impossible, right?
No way Especially, a woman by herself can't
the victim's clothes we found here What was the size?
What about it?
that's not important. I found another suspect
What?
Did Ms. Baek ask you to kill Kim Cheol-min?
Hwa-sun could never kill someone or hire a hit man
And do you think I'm stupid?
Even if I Iike the girl you think I'd kill someone?
then you killed Kim Cheol-min without her knowing?
Because in orderto be with her, Kim Cheol-min had to disappear
What?
What did you do on November 9th?
Look here guys
When will you stop bothering Hwa-sun?
Well...
Until we have no reason to
November 9th
He's not our guy
Geez man
He has a clear motive A motive!
So the motive
the reason
What?
there is someone but...
Yeah? Who?
But there is no motive
Write question #1 on the board and if you have the time, do it up to #4
Hey
So you are the disciple of Doped-Goras
Excuse me?
Back in school, your teacher's nickname was Doped out Pythagoras
Aren't his problems difficult?
Everybody says it's hard but I Iike it
Oh yeah? Why?
Well..
His problems have blind spots that mislead people
It might seem Iike a geometry problem But it's actually a function
You're killing them all
Go on
Yes, sir
Study hard
Let's go to the break room
Okay
What's up? Obviously, you're not here to check out my tests
Don't take this personally
According to this, you skipped the morning class on November 10th
And you came to work in the afternoon What happened to you?
A cold
Really?
What do you mean?
And you were absent on the 9th
I heard that you sometimes skip morning classes to do your math research
But the administrator was surprised that you were absent on the 9th and 10th
Said you never took off for two days in a row
I haven't?
Is that weird?
A scrupulous person Iike you
It's odd you didn't come to work for a mere cold
On top of that, you were absent the day before
Did you go see a doctor?
What do you want from me?
I suddenly want to ask you this
Making a problem no one can solve
or solving that problem
Which is harder?
Did you pity Baek Hwa-sun?
She killed a person
I have to go
See you Iater
Auntie
the next door, He is here
What're you doing at my place?
You're home
I'm almost done
Isn't Kim Cheol-min about tft 6in?
Don't they seem too big?
these fit you
Don't they seem too big for tft 6in guy?
Guess so But you can wear pants however you want
I felt uneasy so I thought well and hard
But this has to be an unmotivated murder
that's why there's no suspect
You think a psychopath did it?
Usually, when a murder happens the killerwill do anything to hide the body
Bury in the mountains or sink it in a reservoir
Even if he didn't have a car
Han-river was right in front of you
If I were him, I'II tie the body with something heavy and sink it under water
So you're saying
the killer Ieft the body on purpose for others to find
Yeah, he's a psychopath He wants the world to knowwhat he did
At Ieast that's my guess
then think about it this way
the killerwanted the bodyto be found
that's right
then this actually makes sense
Nov. 9th Absent Nov. 10th Absent
His problems have blind spots that mislead people
It might seem like a geometry problem But it's actually a function
Right?
JINSUNG Inn
there was an empty noodle bowl and he was gone
So you didn't see him the day before his murder either?
Chinese food...
think it was around midnight He asked about food delivery
I gave him the number for a chicken delivery
Over the phone?
So you've never really seen the guy's face. Have you?
Mister
No, no wait!
Mister!
Wait
Mister!
Hey!
You going up?
Stop right there! Hey!
Until now
I onlyfocused on Baek's alibi
But the alibi wasn't important in this case
the problem was the dead body
Really?
But I...
I hope I'm wrong
Looking at the homeless, you said they are precise Iike clockwork
And you said when one gets free from clocks, one will become even more precise
that's for people who are aware of time!
For people Iiving within the clock!
I have no idea what you're talking about
Did you kill someone?
Even if you solve this problem, it won't make anyone happy
Nor change anything
You...
You think it's going to change anything?
Yoon-ah must be really gifted at math
What brings you here?
It's just that...
I received these at the store today
Stay away from Baek Hwa-sun
You bastard can never make her happy
Is there anyone you know who might do this?
Should I call the police?
No, no police
You said you trusted me
that I'II protect you no matter what
PIease Iet me in
I have to ask you something
Seok-go
You Iike me, don't you?
that's why you're helping me Isn't it?
the past few days, you feel Iike a stranger to me
You sent those pictures, didn't you?
What?
You don't want me?
Isn't this what you want?
I should've known
there's nothing free in this world
AII men are the same It's so obvious
Do whatever you want, do it
Who cares if you're a pervert
I brought this unto myself
Why?
Why are you doing this to me?
I barely escaped from a Iunatic
How can I Iive feeling so suffocated?
What is it you want from me?
Go home
Yoon-ah's waiting
Do you Iove Baek Hwa-sun?
Who? Who are you?
How much do you Iove her?
Can you die for her? Huh?
What the...
Who the hell are you?
What the fuck? Asshole
Who the hell are you? Come here fucking
- Asshole! - You want to die?
Who the hell are you?
You're that fucker You sent those pictures, didn't you?
You messed with the wrong person You crazy asshole
Did you find it?
He could be a real criminal Look closely
Not over there, Iook up! If you don't break up with him I'm going to kill him myself
I got it
I saw him for the first time on November 9th
Kim Cheol-min... that filthy piece of trash
He was Iurking in front of the apartment
As soon as I saw him, I knew he was Hwa-sun's ex-husband
How did you know right away?
I know everything about Hwa-sun
What kind of music she Iistens to
What kind of things she Iikes to talk about
Which TV series make her cry
Since when?
What the hell happened?
Your friend is a total psychopath
Just now, he was caught in the act, trying to kill Nam tae-woo
He also confessed to the murder of Kim Cheol-min
What?
And we talk through the walls
the walls?
I can hear everything Hwa-sun says
She knows that too So she talks to me through the wall
She said to kill Kim Cheol-min
She said she's miserable because of him
So I did what she asked
But how could she date another man?
Bitch
I should've killed herfirst
I found this in your mailbox
You received threatening calls at the same time every day. Didn't you?
We searched the call history from a payphone booth
the guy next door, he is a total psycho
He just confessed to the murder of Kim Cheol-min
Stop there! Captain's going to be back soon
- Just give me ten minutes! - Detective Jo!
Wake up, bastard
Get up and Iook at me
Seok-go Stop with the acting
You didn't kill Kim Cheol-min
At first I thought...
You took pity on Baek and she asked for help
So you unwillingly helped her move the body
But the Kim Seok-go I know He won't kill anyone for no reason
Because he is rational and Iogical
But I overlooked something
that as Iong as the Iogic fits, you can be the most brutal person
that day, I saw the way
you Iooked at Baek
Oh, this bastard is in Iove
then, when Kim Seok-go falls in Iove,
what would he do?
When his Ioved one is in danger
He will plan something. Right?
A flawless and perfect plan!
that's interesting but...
A hypothesis needs a proof in order to become true
Fucker! Are you going to ruin your Iife for that woman?
I just confessed to the murder of Kim Cheol-min
Even if you solve everything,
my trial would've been over by then
If I get convicted in the first ruling and I don't appeal,
then Kim Cheol-min case is over
No, no. this is wrong You're out of your mind
this is not Iove this is not real
How can you waste your genius brain?
It's not about my brain
It's my heart
Bastard...
Bastard You shouldn't have Iet me catch you
Bastard
Let me ask just one favor
Ms. Baek
I don't know where to begin
I don't know what's happening right now
But I came here to confess the things I've been hiding
Seok-go wanted me to give this to you
I don't know what's in the Ietter
But it's probably not what I'm about to tell you
It makes sense you don't know anything
Because you've been doing what Seok-go's been telling you
It's only natural that you passed the polygraph
You never Iied
On Nov. 9th, you actually did dine out and see a movie with your niece
But you probably wondered why people only kept asking about Nov. 9th
because you killed Kim Cheol-min, on the 8th of November
Yes, Seok-go isn't innocent He's guilty of a crime
Mang-won district riverside murder
Kim Seok-go is the killer
He really did kill someone
that day,
the first day of murder on November 8th
Seok-go probably contemplated over the dead body
If the police finds the body, they will find the real killer
Even if the body is never found
he thought you would Iive your Iife in agony,
worrying when the bodywill turn up
So Seok-go decided
to commit another murder
His plan was to trick us into believing the body was Kim Cheol-min's
Just in case, no matter what happens he couldn't back out
He perfectly blocked off his own exit to make it impossible to undo
Hello
Inn
Seok-go made someone you don't know into Kim Cheol-min
And kills him in the same way
So the body we found wasn't the real Kim Cheol-min
And then some place where no one knows
Seok-go probably hid Kim's body
so that it can never be found
But you see
the person Seok-go wanted to deceive perfectly
was you, Ms. Baek
that's why Seok-go stalked you
But then, an unexpected variable me, popped up
Protecting someone until the end
Even taking the blame for someone else's murder
Is this possible for a normal person? I'm not sure
Are you his family? Are you his wife?
You're not even his girlfriend
From the beginning,
he planned to take the blames foryou
So now
Everything is up to you
I just don't want that stupid bastard...
to be miserable
this is my heartfelt honesty
And it is the truth
I want to thank you for everything
Because of you, I was able to keep going with my life
I don't know
I don't know!
Auntie, what are you doing?
Huh? Hand me that
Wow, you put everything in order
May I bring in the ones outside?
No
Until you showed up in my life
I only thought about dying
I believed math was the only perfect thing in life
So when I couldn't find the answers anymore,
the joy became agony and despair
Maybe it was the loneliness
- Hi - Hi
We just moved in next door
Here
My aunt made it I can't guarantee the taste
Is there maybe something I can help?
Pardon?
It's nothing, bye
That guy is a bit...
But you can't guarantee the taste?
I'm joking
You know what's in those rice balls?
That's when I realized
There's something essentially as beautiful
as the beauty of math in this world
Hello
Miss
those rice balls were good
that's great
If you want, you can eat it every day
You really came
Hello, sir!
I'm Iate
Hwa-sun and Yoon-ah
Thank you so much
Mr. Nam seems sincere and trustworthy
I hope he makes you happy
Please forget everything about me
and what had happened Don't ever feel sorry for me
If you are not happy,
all my effort becomes meaningless
If you ever turn yourself in because of guilty conscience
There's no longer a reason for me to live
This is my last request
I'll always pray for your happiness
Always, Kim Seok-go
Seok-go
Wait
Seok-go, wait Just need a word
- What is it? - PIease Seok-go
- Stop the bus - Isn't that Baek Hwa-sun?
Can you see me?
Can you hear me?
I'm sorry, Seok-go
Sorry I said I feel suffocated
I shouldn't have said that
Seok-go, I...
Seok-go! Why did you do all this for me?
You can't just go away Iike this
Seok-go
- Let's get going - Seok-go
Seok-go, Seok-go!
Ms. Baek!
- Seok-go! - Ms. Baek!
What will happen to him?
this is all because of me
You're the sole reason I'm still here
I'm so sorry
Ryoo Seung-bum
Lee Yo-won
Jo Jin-woong
Director/ Bang Eun-jin