Ludwig

It really does say "supercop".

Have you got anywhere with that cypher, anywhere at all?

So since you've been here, you've solved four murders

and not a single letter of that thing?

I need the source code.

Right, well, work out what and where it is, then!

Oh, no, that computer woman's here.

She almost caught me this morning.

Caught you doing what?

Chief Constable Ziegler has been accessing a lot of files lately

from your computer, even on the days he's not been there.

What do you think you're playing at?

Who is this?

CALL DISCONNECTS

DRAMATIC MUSIC

KNOCK AT DOOR

Yes?

DOOR CLOSES, KEY TURNS

BELL TOLLS

BELL RINGS

KNOCKING

Mr Durose?

Mr Durose?

I've told you, it's locked from the inside.

Here.

PUPILS GIGGLE

Haven't you got somewhere to be?

Yes, sorry, miss.

HE SPLUTTERS

GIRL SCREAMS

Out.

Out, now!

Out! Everybody out!

PUPILS TALK AT ONCE

Go, go. Get out! Oh, my God!

What's happening? What's going on?

Freya, what is it?

FOOTSTEPS APPROACH

You didn't go back to bed!

We all agreed to go back to bed.

Are you not even going to ask us what we found out?

You've found something out?

James's phone...

..has been cracked.

Really? It was fine when I had it.

Hmm?

What? No, crack... Hacked.

Someone's tampered with the software,

set it so that you can't withhold numbers any more.

That asterisk before the number that called last night,

that's what that means. It was supposed to be withheld.

They didn't know we could see it.

That's weird, right? I did some googling.

Networks can do it, but users shouldn't be able to.

It's hardly James's area of expertise.

Holly? She does seem good at that sort of thing.

Well, maybe she's been helping Dad all along.

She doesn't seem to like me - or, rather, him.

Possibly a bit of both.

You need to talk to her, today, alone.

Alone? You need to get on with it because we've hit a dead end here.

Yeah, we... We tried calling it back, but it doesn't take incoming.

It's his old partner, Matt Neville.

It has to be.

If it is him, then he's ex-directory.

The area code is for Manchester, but you can buy area codes.

He could be anywhere. Good.

Good? If you knew the address, you'd insist on going to see him.

And I'd tell you that that was too dangerous, and you'd tell me,

"OK, I won't go then," but then you'd just go and see him anyway.

Don't you have a detective to impersonate?

Yes.

And talk to Holly.

Alone!

Mum? Mm-hm? Erm...

If I told you I might know a way to get an ex-directory address,

would you be willing to not make a big thing about how I know?

Doors closing.

Ah, there you are, guv.

Great timing. Hmm?

Let's go. Go where? Back to school.

Well, my school certainly never looked like this.

Mine did.

We even had a clock-tower just like that one.

TOWER BELL CHIMES

Morning, guvs.

The body's already gone.

Saw it, though. Not pretty.

I'm going to say it had been here a couple of days at least.

The caretaker broke in with a drill. Door was locked from the inside.

Looks like a suicide.

There's even a note.

Handwritten? Typed.

So the deceased was the headmaster?

Yes, sir. Ian Durose.

Been here 20 years.

Promoted from Head of English in 2015.

Head of English, eh?

Standards must have plummeted.

Two double negatives, no apostrophes.

And how did he do the deed, jump off the desk?

Leaving no footprints, no shoe marks,

not disturbing a single thing?

I mean, that's the straightest pile of papers I've ever seen.

I've seen straighter.

But, yes, if you're alluding to the fact this scene appears staged,

I would agree.

This wasn't suicide.

This was murder.

Yes!

Knew it. Sorry, sirs. It's just...

It's just that's what I was saying earlier. Wasn't it?

Yeah. I'm glad I didn't take the bet now. The...

I... I mean...

I'm glad that there wasn't a bet, because why would there be a bet?

We don't bet.

We don't bet. Mm-mm.

We don't bet. Sir.

CAMERA CLICKS

DC EVANS CLEARS THROAT

I-if it was a murder, though, how did the killer get out?

I mean, the windows are painted shut and the door

was locked from inside... No, it wasn't.

Oh, it definitely was, sir.

No, it can't have been.

Don't really think it's in question, boss, sorry.

It was locked from inside. The key's still in it.

Well, seeing as you're not here to collect your winnings,

Detective Sergeant, what do you have for us?

Right, yes, sorry.

Erm, we've shut down this building and the pupils have been moved

to the sports-hall. I think they're sending them home.

And who's in charge?

There's a deputy head, I presume?

Ms Chordwell.

She's a bit shaken up. She found the body.

TAPPING

Ah, guv?

How do you know how to do all this?

You did say you wouldn't ask that.

That was before I found out it was on the Dark Web.

I mean, isn't that where you buy drugs and hire hit men?

Possibly. I don't know.

I do know you can get ex-directory addresses on here, though.

Henry! What?

OK, a friend - not me - used it to send a fleet of taxis

to our geography teacher's house - one an hour, all night long.

Mmm, that is quite funny.

Thank you! I mean...

..I will... I will pass that on.

Oh, I've got it. Really?

Yeah. It's an address in Wales.

It's registered to a woman, not a man.

Gillian Botley.

Do you know her?

No.

Are you sure?

Of course I'm sure.

You're not going to go are you, Mum?

Only I do think Uncle John's right on this one.

Dad's letter says, "Trust no-one"...

Oh, Henry, do give over. ..and if you don't even know

who this woman is... You're starting to sound like him.

I'm not going anywhere. I do have a day-job, you know?

Go and have a shower.

Thanks, Henry!

Don't ever go on the Dark Web ever again.

Murder?

The postmortem will either confirm or deny this,

but for expediency, we need to work on the assumption that it was.

But the door was locked from the inside.

Yes. Which is really annoying. Have you any idea how that happened?

What? Perhaps a better starting question would be,

when was the last time you saw Mr Durose?

Just before I left. I saw him heading to the office.

He often worked late. I do too.

But it was a Friday after a long week and I just wanted to get home.

And where is that, home?

I have a cottage here on-site.

And so does Mr Durose.

But you were here, ah, basically, at the school all weekend?

And you live alone?

No, I live with my...

Well, fiance now, actually.

Though I don't have a ring yet.

Mr Bishop.

He's the sportsmaster here.

He was away over the weekend,

house-sitting for his parents up in the Highlands.

Very nice.

Erm, you didn't go with him?

No, we had a tiff.

But it doesn't matter now.

And you didn't see anybody else on that Friday evening?

One of the housemasters.

He left late. I saw him out the window heading to a car.

But he's not all there sometimes.

He used to be our maths teacher, but he doesn't actually teach any more.

Probably fell asleep in the office. Wouldn't be the first time.

Mr Todd?