On May 26, 2013, porn-obsessed killer Jamie Reynolds lured 17-year-old Georgia Williams to his home where he hanged her and took photographs of himself sexually assaulting her. He then dumped her body in woodland and went on the run. Georgia’s father Steve, a serving police officer, and mother Lynette, tell us how they discovered the sickening details of their daughter’s death and the devastating impact it’s had on their lives. We hear how Reynolds has been jailed for life, branded a potential serial killer and told he will never be released. Former Detective Superintendent David Swindle and psychologist Emma Kenny give us an insight into Reynolds’ twisted mind and reveal the full extent of his morbid fascination in extreme violence against women. Detectives who worked on the case tell us Reynolds stored thousands of images and videos on his hard drive and reveal how he meticulously planned, then acted out his sadistic fantasies on Georgia.

Rana Faruqui’s former boyfriend Stephen Griffiths refused to accept that their relationship, which had only lasted a few months, was over and that Rana wanted nothing more to do with him. He stalked her for several weeks and on August 2, 2003, he stabbed her to death with an eight inch serrated hunting blade. Rana was in a field fetching her horse in for the night when she was attacked and repeatedly stabbed. Griffiths was jailed for life but is eligible for parole in 2017. Rana’s mother, Carol Faruqui, and siblings, Simon and Gemma, tell us about their sense of injustice and former Detective Superintendent David Swindle and psychologist Emma Kenny analyse the extent of Griffiths’ controlling nature and what drove him to murder Rana.

Britain's Darkest Taboos is the powerful and shocking true-life crime series that recounts some of the most sickening acts of familial crime imaginable. No subject is off-limits; from incest and prostitution, to rape and murder. Britain's Darkest Taboos confronts every family'’s worst nightmares, relived and retold by the family and friends at the heart of the events, as well as the police officers who were involved in the cases.

On December 3, 2013, Ben Blakeley flew into a rage and strangled his teenage girlfriend Jayden Parkinson to death after she told him she was pregnant. He dumped the 17-year-old’s body in a ditch and then, a few days later, buried her in his uncle’s grave. Her body wasn’t found for more than two weeks. Jayden’s mother, Samantha Shrewsbury, tells us of her deep sense of loss and how she tried to get her daughter to end her violent and abusive relationship with evil Ben Blakeley. Former Detective Superintendent David Swindle and psychologist Emma Kenny examine the violent and abusive hold Blakeley had over Jayden and give us an insight into his twisted mind.

Louise Turnbull was subjected to years of horrific sexual abuse at the hands of her stepfather Albert Maughan. Throughout her childhood, she was raped and indecently assaulted by the man she was supposed to trust. The abuse started at the age of three and continued for the next 12 years. In April, 2015, Maughan was jailed for 16 years, convicted of 23 counts of historic sex offences including rape and attempted rape. Now aged 43, Louise has waived her right to anonymity to give her first television interview about her lost childhood. Former Detective Superintendent David Swindle and psychologist Emma Kenny examine the horrific details of this case.

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.

In this special episode, we look back over five years and 40 episodes of Britain's Darkest Taboos and examine what we can learn from some of the most disturbing familial crimes in British criminal history.

Ian Walters and his wife Tracy seem a normal couple but in 2014 Ian drove his car off the motorway, killing Tracy. Her family talk for the first time in detail about the couple's troubled marriage and their fight to get justice.

Leanne Meecham was murdered in February 2014 by her abusive stepfather, Simon Meecham. Leanne's sister Carly and her friend Alex tell us about their deep sense of loss and David and Emma look at what drove Meecham to murder.

On July 14, 2013, Kelvin Newton strangled his wife Assia to death. Daughters Sameera and Charmaine reveal how losing their mother shattered the family, while David and Emma look into the devastating effects of domestic homicide.

Ross Taggart dialled 999 on the 23rd of December 2014 to report his mother Carol missing. Two weeks later he was charged with her murder. David Swindle and Emma examine how a son could commit such a callous act.