The Cul-De-Sac Sex Cult: The moving story of Annabelle Forest, who grew up in sex cult in Wales, but eventually brought her abusers - including her own mother - to justice. (S5, ep 6)
A look at the horrific arson attack on the Bimpson family home in Liverpool 2008. Burns from petrol-fuelled flames killed three-year-old Francesca the night before Christmas Eve. (S3, ep 6)
The Sat Nav Killer: Detectives discuss how they caught the killer of 29-year-old Vitalija Baliutaviciene, who was kidnapped on her way to work in Peterborough in 2011. (S5, ep 5)
Watching The Detectives: Killed and buried by her Polish lover in Wrexham in 2008, it was 14 months before the body of Tati Rodgers was discovered. (S3, ep 5)
The Internet Stalker: When an internet surfer became obsessed with website owner Joanna, she never imagined he would murder her husband. How did police track the online killer? (S2, ep 5)
Hotel Of Horrors: A look back at the tragic death of Sasha Marsden who was murdered in a Blackpool hotel after being lured there under the promise of a part time job. (S5, ep 4)
Till Death Do Us Part: The terrible truth about the death of loving wife Collette Daffin, mown down in a hit and run accident in Derbyshire in 2009. (S3, ep 4)
The Good Samaritan: 21-year-old Jane was blindfolded, driven to a caravan in Suffolk and raped. What tiny details did she recall that helped police catch her attacker? (S2, ep 4)
The Babysitter & The Cyber Killer: The tragic story of 19-year-old Katy Briscoe, who was stabbed to death after her killer set up fake Facebook identities to gain her trust. (S5, ep 3)
Killing The Truth: A wife vanishes after her husband moves his mistress into the family home. Ten years later, a yachting accident reveals the dark truth. (S3, ep 3)