(dramatic piano music) - We realized we'd never done a cold case story, so episode two, directed by Simone van Dusseldorp, is our first cold case.

15 years ago, Piet Van der Valk worked on a case with Julia Dahlman's ex-husband.

It was how Dahlman and Van der Valk met.

- Worked on a case in Rotterdam almost 20 years ago.

Involved a kid called Eric Van der Molden.

(sword tinging) (groaning) So that conviction I had about something 20 years ago has come back and we sort of discover whether I was right or wrong about it.

You remember the kid next door?

- Eric Van der Molden?

- He's been killed, which is why I'm here.

Jasmijn Brahm.

- You worked on that?

- Yeah.

- I remember reading about it.

Jasmijn Brahm, teenager.

- She was 16.

- [Coworker] Killed her two younger brothers in cold blood, Karel and Jonas, 10 and 12.

Set fire to the house with them in it.

- [Piet] She stood there and watched.

- It sort of asked the question of whether someone who is a killer then is still a killer now.

- [Piet] She's been given a new identity.

I mean presumably she has a handler.

- That kind of information's above my pay grade.

You need Julia for that.

- Was he young?

- Fit.

- Was he well?

- We didn't really get that far, we just talked about the case.

He said to say hello.

- Liar.

- Said to say hello.

- You never could lie, Piet.

- Never.

- Actually, for me, it was fascinating to find out a bit of my backstory because it's sort of been emerging as the series have gone on.

And in the face of something quite extreme, in that episode she tries to keep her professional front up.

- [Chris] It's really a tale of redemption.

It also dips into the world of restitution of cultural artifacts through museums.

- Rick Van der Molden, not particularly well-liked, posed the repatriation of cultural artifacts.

- What's your problem with the exhibition?

- It's a sham.

They're not really giving anything back, you know?

- I actually majored in post-colonial literature in my degree and what we discovered as a cast was the Netherlands history with countries like Indonesia and Suriname, but we're in a place now, with social media at our fingertips, one of the characters in the episode you'll see utilizes social media to make people aware of all these vibrant cultures that exist in Amsterdam and how we must respect them and what more can be done.

- Right.

Let's fight fire with fire.

(music fades)