TV series
Based on the extraordinary true story of Alec Jeffreys' discovery of DNA fingerprinting and its first use by Detective Chief Superintendent David Baker in catching a double murderer.
Streaming, rental and purchase options
Checked Jul 25, 2026
Code of a Killer is available to stream on Acorn TV, Acorn TV (Via Amazon Prime), and YouTube TV in United States. You can also rent or buy it from Google Play. Use the direct links below to open the provider.
Based on the extraordinary true story of Alec Jeffreys' discovery of DNA fingerprinting and its first use by Detective Chief Superintendent David Baker in catching a double murderer.
Choose an episode, then use the watch options above for the show.
Episode 1
David Threlfall takes the role of David Baker who between 1983 and 1987 headed up the investigation into the brutal murders of two Leicestershire schoolgirls, Lynda Mann and Dawn Ashworth.
Guest stars Lucy Carless, Michael Ajao
Episode 2
With plenty of publicity, the local teenager is released and the world is introduced to DNA fingerprinting for the first time. In the villages of Narborough and Enderby there is a complete sense of fear that a murderer is living amongst them.
Where to watch Code of a KillerEpisode information updated Jul 25, 2026
David ThrelfallDCS David Baker
John SimmAlec Jeffreys
Anna MadeleySue Jeffreys
Lucy CarlessSusan Mann
Andrew TiernanDS Geoff Taylor
Lorcan CranitchDI Alan Madden
Dorothy AtkinsonBarbara Ashworth
Neil EdmondRobin Ashworth
ITV1United Kingdom
World ProductionsUnited KingdomMore shows like Code of a Killer.
