Browse all 4 episodes in this season, including available images, air dates, runtimes, ratings and episode summaries from TMDB.

Episode 1
A few weeks after mother Laura May Shatanawi failed to return home after an exam, her husband reported her missing - but then his secrets came to light.

Episode 2
Explores the task that police forces and prosecutors across the UK face as they try to get justice for families and prove a murder has happened without the victim's body, a vital piece of evidence.

Episode 3
When Jane Harrison went missing in 1995, the search was fruitless and the case closed three months later. But 17 years on, new evidence revealed shocking truths.

Episode 4
When Susan Waring's family grow concerned about her lack of contact, she is reported missing. Two months on, police believe the case is a murder investigation.