Episode 1

Ian Stewart murdered his partner, children's author Helen Bailey, in 2016. He dumped her and her dog in a septic tank at her Hertfordshire home, but reported her missing and produced a note claiming she had gone to stay at a holiday home.

Episode 2

Philip Glenister delves into the story that unfolded in the aftermath of mother-of-four Saima Khan's murder in her Luton home.

Episode 3

The manhunt spanned three countries when Geoff Seggie was murdered in his Derbyshire home. His killer eventually made contact, but he never revealed his motive.

Episode 4

Philip Glenister explores the aftermath of Bei Carter's murder in Bridlington. The investigation hinged on the public's sightings after her killer vanished.

Episode 5

Alarm bells ring for detectives when the hunt for Peter Fasoli's murderer leads them to a second body in Italy. Suddenly, the search is on for a serial killer.

Episode 6

Police thought Manchester mum Sian Roberts's murder was a cut-and-dried case when they got a frantic 999 call from her ex. However, they could not have been more wrong.

Episode 7

Police are at a loss when a 79-year-old is killed in her Hartlepool home. But when the evidence mounts and the killer's movements are tracked, the net closes in.

Episode 8

A look into the 2007 murder of farmer's wife Kate Prout in Gloucestershire. Having failed to find her body, police wondered if the truth would ever be revealed.