You said you know who he is?
Simon Shelton.
His mum used to clean for us when we first took this place on.
I'm going back 15 years. She used to bring him with her.
Right scruffy wee thing he was, always dirty.
Doris used to feed him cos he was always starving.
So, he arrived yesterday? Around five.
I couldn't place him at first,
but then he said his name, and it clicked.
He never let on he knew us, and we didn't push it.
He asked for a room.
I said no at first cos of the dog,
but Doris said she thought it would be OK.
He paid in cash and up he went.
That was the last we saw of him,
until the dog started kicking off and I went up there.
What time did you enter the room, Mr Jessop?
Quarter to nine. Something like that.
I read the note.
Christ. Was he disguising himself?
Is that how he was doing it?
Do you know if Shelton lived locally?
Not sure. I haven't seen him in years, but, erm...
I'm pretty sure his mum's still about.
What's the mother's name? Lil.
L-I-L.
Mrs Shelton, it's the police.
FLIES BUZZING, VOICES ON TELEVISION
Mrs Shelton?
Oh, no.
The tyres on his van are a match with our tracks in the lay-by.
The dog lead found with his body
is an exact match with the marks on the victims' necks.
And in his letter, he confesses to the murders of three women.
We are certain that Simon Shelton is our man.
OFFICER: Yes!
Now, we'll wait for the postmortems,
but it's likely he killed his mother two to three weeks ago.
No reason to doubt he took his own life.
We think he chose The Hero
because he was shown kindness there as a child.
There was £5 in the note he left and an apology to the Jessops.
The Ls almost certainly refer to the mother's name.
So these were, in fact, random killings,
not connected to Larkskill Power Station.
I'm about to make a statement to the press.
Well done, all of you. APPLAUSE
Cause of death, almost certainly strangulation.
But this time, I'd say it happened from behind.
I'll be able to confirm that.
Time of death, yesterday between 9pm and midnight.
She told me she always swam after watching the headlines at nine.
That fits, then.
The Whistler was dead by then.
Was it The Whistler? We aren't able to say at this stage.
Had he cut her face?
Christ.
HE SIGHS Oh, God...
We'll need her personnel file, Dr Mayer.
Do you know who her next of kin is? Erm...
An aunt in Wales, I think.
Would you feel able to identify Hilary's body?
Er, no. No. I don't think I can do that.
How long had you and Hilary been together?
Ah... It's over two years now.
There seemed to be tension between you whenever I saw you together.
Is that fair? Can you explain the cause of that?
She wanted more commitment.
She wanted to move to London with me if I got the top job.
Marriage, perhaps. I wasn't...
HE SIGHS I wasn't sure. How is this relevant?
It was in her handbag.
I also found a reference in her diary
to her attending a private clinic in Tunbridge.
Yes, she was pregnant, briefly.
We both knew it wasn't the right thing for us, so we...
HE SIGHS
What time did you find out The Whistler was dead, Dr Mayer?
Why?
Alice called me, here.
I was working until about 10:30 last night.
She rang around ten
and told me that George Jessop from The Hero had called her...
God, she also told me that Hilary had a huge row yesterday evening
with Neil Pascoe.
Charlotte.
I'm afraid, erm... I'm afraid Miss Roberts has died.
Murdered.
If you could get her file, please?
We'll be setting up interviews again.
I'm very sorry, Dr Mayer.
I will identify her. Sorry.
The last body I saw was my father's when I was a child, so, erm...
Understood.
I'll have Pascoe brought in
and get someone to check Mayer's alibi with security.
And let's get an alibi from Fleet. I'll speak to Alice myself.
Our killer knew something of The Whistler's MO.
We know for a fact that Fleet described what he saw
to both the Mayers.
And I hate to say it, sir,
but we can't know that one of the team hasn't talked at some point.
Would the killer really risk it,
feel confident in the detail, if it was only hearsay?
'So, you can sleep safe in your bed, Miss Mayer.'
'Bye, then. Oh, and tell everyone you see.'
I just checked with Mr Jessop.
He says he left the message around twenty past nine.
Yes, that sounds right.
I was in the bath. I picked it up soon afterwards.
You didn't call your brother until ten.
No, I was expecting him home any moment.
When he didn't come, I decided to call.
Alex says that when you called,
you also told him about a row you witnessed yesterday evening,
between Hilary and Neil Pascoe.
Yes. No, erm...
I was out walking, and I heard raised voices.
I ran down there, and Hilary was...
..so angry, so upset.
It was Pascoe and...
..that girl he lives with.
It was obviously something about, erm...
..about this.
They were all so angry.
I tried to get Hilary to come away.
They almost came to blows, her and the girl.
I'll need you to make a statement.
What did you think of Hilary?
I noticed the...
..strain in the atmosphere the other night.
She was in one of her dangerous moods that night.
Honestly, I... I wasn't sure about her.
She could be... abrasive.
But I admired her.
How... uncompromising she was.
Fierce.
When she wanted something, she set out to get it.
Like moving to London with Alex?
Yes.
I told him to wait until he knew he had the job to make a decision.
But I think he was conflicted.
She was angry and aggressive.
I held my own, then she left.
I didn't like her.
I hated what she stood for, but she's a fellow human being.
I wouldn't wish that sort of death on anyone.
What sort of death? Being murdered.
By a maniac. It's all around the headland.
When did you hear The Whistler was dead?
Heard you on the radio this morning. Why?
And after the row... what then?
Nothing. I had a beer, I calmed down.
I made some food with Amy, and then...
then, yeah, we were in for the rest of the night.
How do you make a living, Mr Pascoe?
I'm doing a doctorate, so I get a small grant.
And I do some gardening jobs in the summer.
Do you own the caravan? Yeah.
I paid a pittance to the landowner for it.
So if Hilary Roberts had sued, you would have lost your home.
Probably. And there was Amy and the baby to think about...
We would have survived.
There's more important things than money.
Especially when there's a massive threat sat there on the headland.
No-one's gonna be talking about money
when they're dying of radiation sickness.
Why are you interviewing me?
You don't think this is The Whistler, do you?
She was being a nasty bitch.
Shouting, getting in our faces, scaring the hell out of Timmy.
She said she was gonna sue Neil,
said she was going to have the caravan knocked down.
So, yeah, I told her to piss off.
Why wouldn't I?
A witness says you almost came to blows.
Posh woman from the fancy house, was it?
Might have guessed she'd tell tales.
We didn't "come to blows",
but if we had, Roberts would have deserved it.
You're a member of People Against Nuclear, is that right?
Your name's on the membership list. Yep.
Is that how you met Mr Pascoe? No.
But he asked me to join, so I did.
If he says Larkskill's dangerous,
I'm gonna believe him over you lot any day.
Who's "you lot"?
You lot. All of you.
Powers that be.
I don't know. I don't know anything about it.
So, how did you meet?
I met him on the beach. I'd left London.
Wanted somewhere Timmy could have some space, run around.
Got on the first train to the seaside.
There was nowhere in town I could afford.
Thought we'd have to go back. But I got talking to Neil.
And he said we could stay in the caravan for a bit.
He's a good man.
So, whatever you think he's done...
When did you find out The Whistler was dead, Miss Camm?
Are you all right?
It's awful about Miss Roberts. Why are the police back?
Listen.
The police are going to interview me this afternoon
because I worked with Hilary.
I'm going to say I was with you yesterday evening and all night.
At my place. I need you to say the same thing.
Everyone knows that Hilary and I didn't get on.
What? I didn't know that.
Well, no-one gossips in front of you because you're too nice.
But we didn't get on, and, well, someone will say that,
so it's just easier if I can give them a solid alibi.
No-one's gonna think you were involved in murder.
So, if they ask, we were together.
Everything that happened the night before last...
That memorable night, yes?
Just say it happened last night.
But not the restaurant. They can check that.
I can't lie to the police, Charlotte.
No. You can go to prison for that.
This is making me extremely anxious and extremely unhappy.
I thought you'd want to save me from that.
But if you're too scared... Charlotte, wait.
Wait.
DOOR OPENS
We've requested a warrant to search the caravan.
Christ, you're actually gonna try and pin this on me?
I think you can see it from our point of view.
You and Amy Camm had a bitter row with Hilary Roberts,
a row which almost turned violent...
No, it wasn't violent.
She tells you she's going to sue you,
which would have meant not only the loss of your home,
but most likely the end of your organisation, which you care about.
You and Amy were two of the last people to see her alive.
I imagine you knew that she swam every evening
at around the same time,
or do you never walk on the headland?
Did either of you go out yesterday evening,
for ten, 20 minutes, even?
No. Are you sure about that?
Did Amy go out?
No.
How much do you know about Amy Camm?
She tells me you're not a couple. We're not.
We've lived together over a year, so I'd say I know her quite well.
Amy's just an ordinary girl.
Well, not to me, she's not, she's...
Amy couldn't hurt a fly. Literally, she can't.
All she cares about is Timmy.
What do you know about her background?
I know her mother's boyfriend kicked her out when she got pregnant.
I know she lived in a squat in London.
She's had a hard time.
Pretty clear Camm did go out, and alone.
Did we check her out when we looked into the PAN list?
We would've done. It would've been flagged if she had previous.
There's something off about her. In what way?
She claims only to have joined PAN because Pascoe asked her to, but...
..there's a naive sort of class war edge to the way she talks.
She could have picked that up from Pascoe.
She's political.
She's not just an average single mum from London, so why pretend she is?
They've got clear motive, clear opportunity.
But if the search turns up nothing, I think we'll have to release them.
Could we organise surveillance? On both of them?
I know it's a big call, but... Let's do it.
Hi.
I said it. I said what you said to say.
I owe you a drink.
You'll get your proper reward later.
Let me.
Half a lager? Yes, thanks.
Hi. Can I get half a lager and a lemonade, please?
My parents. It's nice.
I didn't know your dad was military.
Yes. That was taken in Germany.
Father was stationed there for a while.
I liked it. I was actually there long enough to make friends.
I lived in nine different houses and four different countries growing up.
Gosh. Are they still alive?
Yes. Enjoying retirement.
Have you told them about me? Not yet.
Here you go.
Thanks. Thank you.
Where actually were you last night?
At home. I told you that. I don't think you did.
Because I was thinking...
I did actually phone you around eight,
but you didn't pick up.
Right.
Yes. I went for a quick walk.
Are you... Are you asking if I killed Hilary Roberts?
No. No, of course not. But...
You weren't out with someone else, were you?
I mean, you're not dating someone else?
Because...
Why on earth would I do that when I have you?
Oh. Two minutes, if you don't mind?
How are you both?
Would you like a drink? Tea, or...? No, thank you.
I wanted to ask, Dr Mayer,
if you know what Hilary might have used this key for?
It was on the band around her wrist, along with her door key,
so it must have held some importance.
No, I've never seen it. It looks like a key to a safety deposit box.
Yes, that's what I thought. Do you know if she had one?
No, I don't. I mean, I don't think so.
I don't know... why she would need one.
OK, thanks.
We know you're only doing your job, Adam.
We want to know who killed her as much as you do.
Boss. DS Jones just radioed in.
Says Camm was walking her kid
and took a detour up to the graveyard on the headland.
Was in there two minutes, then came out.
Could have been disposing of something? OK.
Get back to her. Tell her to stay on Camm. I'll check it out.
Was the pushchair searched along with the caravan?
I'm not sure.
Sir?
Anyone could have left it. Children playing a game, maybe?
It looks too clean for that.
It's not a child's handwriting.
Sir.
Who do we have inside?
DI Arnold. DS Briggs. Last of the interviews.
I suppose we're ruling out anything personal between her and Amy Camm?
Camm did say she doesn't sleep with Pascoe.
Why keep it secret? Why communicate in that way?
Would MI5 definitely have told you if they were theirs?
They'd have been on the phone, screaming,
as soon as we pulled Camm in.
Maybe they're working for someone else.
God... What is this?
Charlotte Tyson's alibi for the time of Hilary's death
is a man called Jonathan Reeves.
He seems to be her boyfriend.
Also works at Larkskill, in the engineering department.
One woman works at Larkskill and dates a nuclear engineer.
One woman turns up out of nowhere
and befriends an anti-nuclear campaigner.
KNOCK ON DOOR
Sorry, but the background check - there's a problem.
The only Charlotte Adele Tyson with the right date of birth
died in Germany, age fourteen.
The daughter of a British Army captain.
She's changed identity.
There you go. Thank you.
Whose file was that?
I think we're being watched.
I think there's someone over there.
This carries on, I'm going to the press.
Neil, I need to go out for an hour this evening. Can you watch Timmy?
Sorry. This'll be the last time.
I, erm... I don't want them to follow me.
She's known to Security Services. Her real name is Abigail Francome.
Daughter of an Army officer who served in Germany
at the same time as Charlotte Tyson's father.
Age 19, Francome was recruited in Berlin
by an anarchist group known as Revolutionary Cells.
That's the group behind the spate of car bombings in Frankfurt and Rome,
also behind the plane hijacking last year.
Do we bring her in? Decision pending.
Get onto DI Arnold, please.
We need to know exactly where she is at all times.
And let's have a firearms unit standing by.
Do you know where Charlotte is?
Excuse me, Dr Mayer. I'm looking for Miss Tyson.
I think she must've left for the night.
But her car's still here.
She must still be around, then. Shit.
Who's that? Who's that up there?
OK, good. Thank you.
OK. We're bringing her in.
She left early, but not in her own car.
Arnold's at the security gate.
She took a lift with one of the secretaries.
She knows. Is the boyfriend there? Is Reeves still in the building?
Left, 22 minutes later. Get his car details.
Put out descriptions of both of them.
Let's get armed officers to her house. And we bring Camm in.
Could you give me details of the car?
We need to see Amy Camm. Now. Sorry, she's not here.
Just send her out. She's not here.
Hey!
Repeat, do not approach. Tell them to await back-up.
Over. Patrol just spotted someone matching Reeves' description.
Top of the track that leads to Larkskill Marina.
Could they have a boat?
Were you followed? I gave them the slip.
Get on. No.
Look, I only came here to tell you... Get on!
Charlotte! What's going on?
What the hell are you doing here? Go home!
Whose boat is that?
Hello, I'm Charlotte's boyfriend. Who are you?
She's with me. And I'm with her.
Amy's the reason I'm in Larkskill.
You were just a cover, idiot,
for all the prudes and the weirdos who get turned on by it.
Get on.
It's not true. Why are you saying that?
Piss off home and look at yourself in the mirror.
Ask yourself if I ever would've wanted you.
Charlotte. Charlotte!
Charlotte Tyson. Where is she? She's gone. Out there.
When? How long ago? About half an hour.
Alert the Coast Guard.
She was with a woman. Said she was her girlfriend.
What woman? What did she look like? She's called Amy.
Why are we here?
You can just tell me what the fuck's going on now.
Why did you tell those lies? Charlotte!
You should have worn something warmer.
Tell me what's going on.
Put it on.
I had to instigate emergency procedure because of you.
We wait here, and they're sending someone.
What are you talking about? No way. I-I'm not leaving Timmy.
You should have thought about that
before you let HIM kill Hilary Roberts.
The whole station is crawling with police.
He didn't kill her! You mean Pascoe?
You were supposed to be watching him.
I thought you killed her. Why the hell would I do that?
I thought she must have been onto you.
Well, the police are onto us, and that's a fact!
Did you leave it the usual way round, the postcard? Yeah.
Because it was the wrong way round when I picked it up.
They're watching me, and they're watching you.
We've endangered this whole op.
Do you realise how many people, how many years of planning
and exposure and sacrifice...
You said I'd never have to leave Timmy!
You won't do this to me.
You said it was all about people like me and Timmy.
Oh, shut up!
He's one boy.
SIGHS The biggest con of all...
"Look after your own, make your own little family and don't look up."
Don't look up at half the world that's trampled and crushed and used
by the shitty, selfish system we're forced to live under.
He's my son! He's my child!
Christ, what don't you get about that? Quiet!
Charlotte, stop it, stop it! Stay still.
Please, let's just go.
Drop me off along the coast.
I-I'll get Timmy, and I'll disappear, I SWEAR to you.
Oh, God. What... What will they do with us?
They'll get us to Germany.
New IDs.
They'll reassign us.
They'll kill us.
If they're anything like you. They don't want us.
Why would they reassign us when we've screwed this up?
Charlotte, think about it!
Charlotte?
Charlotte! TORCH CLICKS
Charlotte.
Charlotte! Please!
BRACKNELL: Adam.
Sir.
Dr Mayer's soon to step into his new role, Nuclear Supremo,
so he has clearance, and we've briefed him.
Please, sit.
HARDING: We need to thank you.
We've been liaising with our allies on the continent.
The RC group was planning a co-ordinated seizure of Larkskill
and a nuclear facility near Hamburg.
Their whole op's been blown.
What was the plan?
Demand money, prisoner release.
Instil terror to the whole region.
There's nothing quite like the threat of thousands of deaths
to destabilise a system.
We believe Francome, AKA Tyson, had been gathering intel
since she started at Larkskill three years ago.
Camm was most likely recruited by her in London as a runner
and to infiltrate the anti-nuclear group.
We can only assume Hilary Roberts
was unlucky enough to discover something of Tyson's activities.
Did Hilary say anything about this to you?
Er, no.
No, no, she didn't.
There's a wealth of circumstantial...
..for them killing Roberts.
There's no evidence
that either of them knew about The Whistler's methods.
It's enough, Adam.
Needless to say, none of this gets into the public domain.
The idea of nuclear facilities as magnets for terrorists...
Luckily, the women left us the gift of our cover story.
They were lovers.
They killed Roberts because of the row...
took to the water and, er...
drowned when their boat was involved in a collision.
And the bullets in their heads?
We've already spoken to your pathology team.
That information will never see the light of day.
Are you going to talk to them?
About the baby.
First thing tomorrow.
I really am glad...
..that you've found the right man.
How about you? Anyone?
How long is it... since you lost your wife?
Nearly five years.
I suppose it's the guilt...
that keeps me from...
You mean survivor's guilt?
I don't know.
She wouldn't have been having the child...
our child...
..if it wasn't for me.
I don't think she'd want you to feel like that.
I don't think any woman would.
Do you remember you told me once...
your arrival into people's lives brings sadness and destruction?
I wasn't sure what to say at the time.
But it's the wrong way of looking at it.
It's an odd way, actually.
The sadness and destruction are already there.
You can't control everything. Or be responsible for everything.
I think you need to give yourself a break.
Sorry, but there's someone here for you.
Dr Gledhill.
Are you all right? Yes.
We need to speak to you.
'I was in the station alone, and Hilary came in.
'I was a bit of a mess that night, and...
'I blurted it all out about Dr Mayer's error in our research,
'about his refusal to halt publication.
'I gave her a summary I'd written for safe-keeping.'
I watched her lock it in there.
Mayer's error renders all the findings inaccurate and unsafe.
She told me she wouldn't tell him I'd talked,
but he started leaving messages.
You should never have trusted her.
I'm sure Mayer intends to put it right.
Yes.
Now that he's secured the top job.
DCI Miskin.
How can I help?
HE CLEARS THROAT
Dr Toby Gledhill's been found.
Is he all right? Yes.
Well, thank God for that.
Finally, some good news.
He led us to this...
..in a strong box in Hilary's cottage.
Right.
He told you about the error, I take it?
Well, as I said to Dr Gledhill when we first noticed the error, erm...
I simply wanted more time to go over our findings. Mm.
And in the meantime, you published it.
Knowing it contained, to quote Dr Gledhill, "a catastrophic error".
Hilary was using this to manipulate you, wasn't she?
She wasn't only asking for commitment, she was demanding it.
And if she had chosen to tell the authorities about your cover up...
It wasn't a cover up.
..then your credibility would've been shot.
And no-one in the industry would ever trust you again.
What is your point, exactly?
In case you've forgotten,
I was here at my desk, in sight of security,
when Hilary was murdered.
And I assume you've been briefed
about the actual facts of her murder,
or are you too junior for that?
We know YOU were here.
Where's Commander Dalgleish?
Where is Commander Dalgleish?!
ALICE: Come in.
I assume you'll be heading off soon.
I'll be in London more often now that Alex is going to be there.
I'm sure we'll... run into each other sometimes at events.
Can we sit down? Of course.
What is it?
You have a very disconcerting gaze.
I paid a visit to Hilary's bank branch this afternoon in Dover.
I was interested to know if anyone had enquired about a...
a safety deposit box held in her name.
It turned out someone had been in, claiming to be Hilary,
with some sort of proof of address.
This person, a woman, obviously...
claimed to have lost the key and asked for access to the box.
She left quickly
when the cashier told her there was no box in that name.
The cashier confirmed the person was you.
I was just trying to help you out.
You asked whether Hilary had a... Don't lie to me, please.
When did you realise Hilary was blackmailing Alex?
The morning after the dinner party.
Hilary had gone home to change.
I'd seen enough to know that something really wrong was going on.
I asked him for the truth.
He would have flagged up the error in the research eventually,
you know that.
In fact, one could say that he was acting for the best in delaying
because he is the right and only person for that job,
and he'll make an ENORMOUS difference to this country.
It was unethical and dangerous.
She certainly made him think so.
It was revenge on her part, I think,
rather than any sort of love or... possessiveness.
Because he told her he didn't want...
..their child.
Rightly.
Perhaps it sent her a little mad.
Still no excuse.
When did you decide to kill her?
Later that day.
I decided alone.
I acted alone. Alex knows nothing.
I can show you where I disposed of the knife I used to cut her face.
I actually enjoyed it...
..killing her.
It wrenched my heart watching her...
..humiliate him exactly the way our father used to do.
He was vile to Alex.
I didn't realise that.
Not quite the story in the memoir.
He was vile to me, too...
..in a very different way.
He wanted something from me.
His pretty little girl.
I owed Alex a death.
What do you mean?
I have this dream sometimes...
..where...
I'm in the bushes...
..next to my father's bleeding body...
..and Alex runs up and sees.
Dear, sweet Alex.
And he ought to go and raise the alarm, but he doesn't.
He holds my hand...
..and we watch until...
..all the blood is out...
..and there's no more breath.
It's a peaceful dream.
I'm going to have to arrest you. You know that, Alice?
It's fine.
You'll keep me posted about, er...?
Of course.
I'm not going to let it derail my career.
I'll be back as soon as I can be.
Kate...
..don't wish a moment of it away.
Nothing more precious.
Good evening. Can I just take your name, sir?
I'm not on the list.
I was hoping Dr Lavenham might vouch for me.
You're here.
I hope that's all right?
It's more than all right.
Let me introduce you.