3. Case Closed

When the digital intruder starts impersonating Hannah, she goes to the police. Meanwhile, new anonymous email accounts start contacting her with sexually explicit, abusive content.

[email protected]

Episodes released Tuesday.

Hosts: Carole Cadwalladr and Hannah Mossman Moore.

Producers: Georgia Catt and Rob Byrne

Original music and vocals by Self Esteem

Original music: Phil Channell

Sound design by Phil Channel, Georgia Catt and Rob Byrne

Actor: Zak Shukor

Series editor: Philip Sellars

Commissioner: Dylan Haskins

Original footage from: Giorgio Armani Tennis Classic/Facebook

Stalked is a BBC Studios Audio production for BBC Sounds and Radio 5live