Britain's Darkest Taboos Episode Rating Graph

Sonia Oatley reflects on how her 15-year-old daughter, Rebecca Aylward, was murdered by her boyfriend in 2010, reportedly as part of a bet.

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 relatives of Nigel Bacon, who was murdered in 2008 by a hitman hired by his wife and one of his sons, speak out about his death.

Exploring the murder of white mother Laura Wilson, who was killed by Asian boyfriend Ashtiaq Ashgar because he believed she had brought shame upon his family.

An examination of the psyche of murderer Michael Atherton, who killed his partner and two others in Co Durham in 2012.

The 2011 murder of Lorna Smith in Brixton, south London, by her ex-boyfriend, which sparked calls for the introduction of new laws against stalking in Britain.

The parents of Carly Fairhurst offer an insight into domestic abuse, speaking about their daughter's death after she had a fight with her boyfriend in 2006.

Account of an A&E nurse who was killed by her ex-boyfriend outside her workplace while he was on bail and awaiting trial for raping her in 2010. The programme explains how the case led to changes in the law to help safeguard victims of crime, and features extracts from her diary in which she had predicted her death a few weeks prior to her murder.

Family members question what drove 31-year-old Ross Taggart to murder his mother and dispose of her body under a caravan in Fife.

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.

The friends and family of teenager Nikitta Grender talk about her murder at the hands of Carl Whant in Newport in 2011, just two weeks before she was due to give birth.

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.

Assia Newton's daughters describe the full extent of the abuse their mother endured at the hands of her husband.

The case of Malcolm Webster, who killed his wife Claire in 1994, as told by his victim's brother and the murderer's second wife.

The tragic story of Ellie Butler, a six-year-old girl who was beaten to death by her father on 28 October, 2013, at his home in Sutton, London.

The story of convicted rapist David Jaggers, whose sister had his baby when she was 12 years old and kept its father's identity secret for 18 years. By this time, her brother had killed his girlfriend and served six years for manslaughter. He went on to serve life for rape and kidnap. In the first of this series about heinous crimes, his relatives open up about their heartbreak.

The story of how porn-obsessed killer Jamie Reynolds murdered 17-year-old Georgia Williams in Telford in 2013.

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 case of Danai Muhammadi, who started a blaze that killed his estranged wife Melissa Crook, his father-in-law Mark Crook and his own baby in 2011.

The mother and sister of Kirsty Grabham open up about her shocking murder, which took place in Swansea in 2009. The 24-year-old's body was found dumped in a suitcase by a motorway.

Louise Turnbull from Gateshead, talks about the abuse she suffered at the hands of her stepdad, Albert Maughan.

The mother of Essex schoolgirl Danielle Jones speaks out about her 15-year-old daughter's horrific fate in 2001 at the hands of killer Stuart Campbell.

The tragic story of disabled murder victim Gemma Hayter. Gemma was beaten, stabbed and suffocated before being stripped and left to die by best friend Chantelle Booth and her gang on a railway line in Rugby, Warwickshire, in 2010.

The story of Surrey teenager Breck Bednar, who was lured to his death via an online gaming community. Computer engineer Lewis Daynes was setenced to a 25-year prison term for fatally stabbing Bednar in February 2014.

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.

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.