When a woman's body is found at a pumping station in Hull, senior investigating officer Paul Davison and his team must find out how she died.
Tony Blockley and his team find a perplexing murder scene and launch an inquest.
When a body is found by a river in Cumbria, eight years of dogged investigative work pass until one vital piece of evidence blows the case open.
The bodies of two men are found in neighbouring flats in Derby, England. A dangerous killer is on the loose and detectives need to act fast.
Special Investigating Officer Steve Wilkins is given permission to launch an operation to review evidence regarding a series of unsolved crimes.
Dogged detective work identifies a culprit when the body of Eastenders Gemma McCluskie is discovered in Regent's Canal in March 2012.
Back in December 1996, Tracie Andrews reports that two men fatally attacked her partner Lee Harvey after an incident of road rage. Suspicions arise when elements of Tracie's story don't stack up.
Cameras follow author and journalist Satish Sekar, who is determined to seek justice for three men wrongly imprisoned for murder. When police and politicians agree to reopen the case, a real killer is put behind bars.
In 1992, police and the family of 25-year-old Stephanie Slater feared the worst when the estate agent went missing, the start of an eight-day ordeal defined by terror.
Following the investigation into the heartbreaking death of Nikitta Grender and the extensive police work that brought her killer to justice.
The case of Wayne Coventry, who sought love after 18 years with his childhood sweetheart, but the 37-year-old father-of-three was involved in a toxic relationship and was murdered in October 2019
Examining the case of Evie Adams, a woman who seeks a loving family, but finds a man with a deadly secret. Eventually their hidden relationship unravels her dreams and leads to tragedy
Emma Caldwell's killer Iain Packer, a sign installer with a violent past, evaded justice for years.
Lancashire teenager Alex is murdered by Brian Healless, a man that he met on a dating app.
Documentary exploring the death of 23-year-old Marta Ligman, whose body was found in a suitcase floating in the Grand Union Canal in Little Venice in north-west London