The hunt to catch the killer of three young women in the Port Talbot area in 1973 and the remarkable story of how - in the first case of its kind - the mystery was solved almost 30 years later using pioneering DNA evidence. Contrasting the policing methods of the 1970s with the forensic breakthroughs of the early 2000s, the series portrays a town dealing with the repercussions of an unsolved case three decades on, and asks if justice can ever truly be found.
Scott Arthur
as Young DC Paul Bethel
Sion Alun Davies
as Young Phil 'Bach' Rees
Keith Allen
as Dai Williams
Gareth John Bale
as DC Geraint Bale
Aneurin Barnard
as Joseph Kappen
Kriss Dosanjh
as Young Rowan Anwar
Philip Glenister
as DCI Paul Bethell
Richard Corgan
as DS Chris Wynne
Steffan Rhodri
as Phil 'Bach' Rees
Oliver Ryan
as DCS Ray Allen
Steve Nicolson
as DI Tony Warren
Nia Roberts
as Karina Bethell
Episode 1
Episode 2
Episode 3
Episode 4