Britain's Darkest Taboos

Documentary lifting the lid on shocking crimes. Family members talk about the murder of 12-year-old Tia Sharp by her step-grandfather Stuart Hazell in Croydon, south London, in August 2012.

Documentary exploring the house fire deliberately started by Carl Mills in Cwmbran, south Wales in 2012, in which he killed his baby daughter, his girlfriend and her mother.

The family of Kirsty Treloar speak about her shocking murder at the hands of Myles Williams in 2012, who also tried to kill her brother and sister when they attempted to defend her.

Documentary in which friends of Michaela Gol and her mother Julie Sahin reflect on their murders at the hands of Michaela's husband Ensar in 2011.

The story of a father who killed his seven-year-old son and 25-year-old daughter in Fife in 2008, including an interview with the victims' mother.

Josie Fleming describes how her 17-year-old sister Sylvia was murdered by her boyfriend Stephen Scott in Omagh, Northern Ireland, in April 1998.

The mother of 20-year-old Eddie Miller, who was murdered by his girlfriend Michelle Mills in Scalford, Leicestershire, in 2012, describes how his death has impacted on the family. Plus, forensic psychologist Keri Nixon and psychologist Emma Kenny investigate what factors may prompt women to commit murder.

The story of twins Rachel Steadwood and Tracy Brown, who were sexually abused by their uncle between the ages of five and 13. Despite the horrors they endured, both women kept quiet about their ordeal for nearly 30 years but broke their silence in 2012 and as a result, John McCallum was finally sent to prison for his crimes.