2023 BBC One crime drama series which starred Philip Glenister and Steffan Rhodri as detectives investigating the real-life murders committed by Joseph Kappen in Port Talbot in South Wales in the 1970s.
The series is set 30 years after the murders, when advances in DNA technology lead them to re-open the case, eventually identifying the killer of 3 women who were abducted and never found.
Richard Harrington starred as forensic scientist Dr Colin Dark.