A missing persons unit investigate serial killers who target the impressionable and vulnerable.
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Two churchgoing couples enjoy small town family life in Texas - until somebody picks up an axe.
A married ex police couple are asked by a police officer and their close friend to turn their remote Guest House into a Safe House.
The story of a major road accident and a group of people who have never met, but who all share one single defining moment that will change their lives.
A policewoman sets out to discover who murdered her husband, an undercover officer.
The story of Sir Alec Jeffreys' discovery of DNA fingerprinting and its first use by DCS David Baker in catching a double murderer.
The story about the murder of 11-year-old Rhys Jones in Croxteth, Liverpool in 2007; his parents' (Melanie and Steve) ordeal; and how Rhys' murderer and his associates were eventually brought to justice.
Dramatisation of the case of serial killers Fred and Rose West, focusing on the way in which they were brought to justice.
O'Neills, police detective Chris and his wife, former undercover officer Michelle, whose teenage daughter goes missing.
In 1983, Scottish serial killer Dennis Nilsen was arrested after the discovery of human remains which had blocked a drain near his London home.
Follows the police operation in 2010 to apprehend fugitive Raoul Moat. He went to Northumbria after killing one person and wounding two others.