A moving look at the murder of Natalie Jarvis, the 24-year-old who was stabbed to death by her boyfriend in the village of Swanley, Kent, in October 2012.

A look at the murder of 90-year-old Mabel Leyshon, who was stabbed to death at her home in Anglesey in 2001.

In October 2004, devoted mother of two Rachel O'Reilly failed to pick up her young children from school in Naul, North County Dublin. Minutes later, Rachel's mother Rose found her daughter lying dead in the bedroom of her home.

Explores the tragic murders of Derek and Eileen Severs, who were found dead after disappearing from their home in Rutland in 1993.

A look at the murder of Helen McCourt in Merseyside in 1988. Local pub landlord Ian Simms was convicted of her murder, yet has never revealed the whereabouts of her body.

The murder of 57-year-old Ella Douglas whose body was found 10 months after she disappeared from her hometown of Dumfries in 2000.

Explores the tragic death of church organist Alan Greaves who was attacked as he walked to Midnight Mass in High Green, Sheffield in 2012.

Documentary exploring the murder of much-loved 63- year-old Alethea Taylor who mysteriously vanished from her village of Orleton in Herefordshire in 2012.