E1 - Episode 1

Aired: December 11, 2022

Strike is approached by a woman asking for help to find her mother, Margot Bamborough, who went missing in 1974 when a psychopathic serial killer stalked the streets.

E2 - Episode 2

Aired: December 12, 2022

The investigation takes a dangerous turn as a disturbing piece of evidence leads Robin and Strike into London’s underworld. Robin risks her life by pursuing a vicious suspect.

E3 - Episode 3

Aired: December 18, 2022

Spurred on by the father of a young woman who also went missing in the 1970s, the detectives attempt to outwit an incarcerated serial killer who may hold the key to the case.

E4 - Episode 4

Aired: December 19, 2022

Strike realises that Margot’s killer is responsible for many other murders that have gone undetected, and lays a trap.