A Killer's Mistake

Chacey Poynter. When firefighter Bob Poynter is killed, no-one appears more devastated than his young wife, Chacey. But soon detectives discover a web of lies. S3, Ep5

Uloma Curry-Walker. Within weeks of their wedding, a debt-ridden wife recruits a team of teenagers to help her get her hands on her husband's life insurance policy. S3, Ep9

Jesse Matthew. In Virginia, 2009, student Morgan Harrington vanished. Her body is found, but no culprit is identified until five years later, when another student goes missing. S1, Ep4

Jesse Matthew. In Virginia, 2009, student Morgan Harrington vanished. Her body is found, but no culprit is identified until five years later, when another student goes missing. S1, Ep4

Ben Lacomba. When Sarah Wellgreen suddenly disappears, detectives desperately search for her. But after discovering no evidence, they investigate closer to home. S3, Ep10

Trimaan Dhillon. When Alice Ruggles is found dead in her flat, detectives uncover a tale of obsession. Police must distinguish truth from lies to solve this case. S5, Ep9

Trimaan Dhillon. When Alice Ruggles is found dead in her flat, detectives uncover a tale of obsession. Police must distinguish truth from lies to solve this case. S5, Ep9

Kohlhepp. Todd Kohlhepp hides a deeply disturbing history of crime. When police find a woman held captive and her boyfriend missing, they unravel the truth. S4, Ep6

Nat Fraser. In Elgin, Scotland, a young mother goes missing in 1998. Investigators fear they will never find out what happened until they discover the killer made a key mistake. S1, Ep1

Nat Fraser. In Elgin, Scotland, a young mother goes missing in 1998. Investigators fear they will never find out what happened until they discover the killer made a key mistake. S1, Ep1