The Investigation (2020)
Why this pick
Its restrained, fact-led reconstruction and patient investigative detail closely match Code of a Killer’s sober fascination with how methodical police work turns evidence into answers.
A FILM WORTH A CLOSER LOOKTHE SERIES
IF THIS ONE STAYED WITH YOU
Keep the feeling.
SIMILAR PICKS / A PERSONAL CONNECTION
Why this pick
Its restrained, fact-led reconstruction and patient investigative detail closely match Code of a Killer’s sober fascination with how methodical police work turns evidence into answers.
Why this pick
Another compact British true-crime procedural in which a cold case is reopened through forensic advances, balancing procedural momentum with the human weight of the investigation.
Why this pick
Its absorbing procedural focus, rigorous attention to evidence and formidable lead investigator offer the same grounded, intelligent crime-drama appeal, with deeper workplace tension.
Why this pick
A humane, methodical cold-case drama where forensic clues gradually uncover long-buried connections; its measured pace and team-based inquiry should suit the original’s investigative texture.
Why this pick
A meticulous, unsettling investigation driven by records, patterns and frustratingly incremental breakthroughs. It shares the original’s respect for process, though with a darker and more obsessive atmosphere.
Finding the atmosphere, tension and little details that made this one stay with you.
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01 / THE STORY
Code of a Killer is 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. The drama focuses on how Jeffreys’ science and Baker’s investigative vision created the single biggest leap in the history of criminal investigation.
02 / FACES IN THE FRAME

DCS David Baker

Alec Jeffreys

Sue Jeffreys

DI Alan Madden
DC Taran Kholi

DS Geoff Taylor

DCC Chapman

Vicky Wilson