The chilling story of Lee Ford, who killed his wife and four stepchildren in a cold-blooded murder spree over 24 hours in September 2000.

The story of Sarah Williams and Katrina Walsh, friends who carried out the evil, jealousy-fuelled murder of businesswoman Sadie Hartley.

A case highlighting the dangers of online grooming, 14-year-old Breck Bednar was lured to a London flat before being killed by a fellow teenager.

The story of 30-year-old church warden Ben Field, who was jailed in 2019 for the murder of Peter Farquhar, 69, whom he duped into a fake relationship and persuaded to change his will, before drugging him with a cocktail of pills

A look at the north London serial killer Dennis Nilsen, who murdered at least 12 men before being caught when he began flushing remains down the toilet.

When Peter Tobin was convicted for raping and murdering a Polish student in 2006, further investigation linked him to two more murders.

The Yorkshire Ripper. Examining some of the UK's most prolific killers. Peter Sutcliffe's five-year killing spree claimed 13 victims.

Ian Huntley murdered two 10-year-old schoolgirls in a case that shocked the nation and changed the course of British policing.

The first woman in British history to be given a whole life sentence, Joanne Dennehy's 2013 rampage saw her murder three men and attack two more.

The Suffolk Strangler. Steve Wright brutally killed five women over a six-week period in 2006. He is unquestionably one of Britain's Most Evil Killers.

Between them, Fred and Rose West killed at least 12 girls over two decades in Gloucestershire. What fuelled their appetite for murder?

Levi Bellfield was already in prison for killing two women when he was found guilty of murdering schoolgirl Milly Dowler in 2002.

Profiling the Italian killer, jailed for murdering and mutilating his Bournemouth neighbour, Heather Barnett, in 2002.

A closer look at the murderer Stephen Seddon, a convicted fraudster who killed his parents in a cold-blooded crime as he tried to get his hands on their £230,000 estate.

The story of serial killer Geoffrey Evans and his accomplice John Shaw, who hit headlines in 1976 after the murders of two women in Ireland.

New. Roy Whiting: A profile of child killer Roy Whiting, the convicted sex offender who abducted and murdered eight-year-old Sarah Payne.

Nurse Beverley Allitt poisoned 13 children under her care, killing four of them, earning her the nickname "The Angel of Death" from the British media.

An examination of Mick Philpott, the notorious Derby father of 17 who murdered six children, five of them his own, when he set his own home on fire.

The story of Raoul Moat, who shot his ex-girlfriend, her new lover and a policeman, leading to the largest manhunt in modern British history.

A profile of former aspiring model Tracie Andrews, who stabbed her fiance 42 times in 1996 and then blamed the attack on a fictional road rage assailant.

The chilling story of Mark Martin, who murdered three homeless women in his quest to become Nottingham's first serial killer.

In 2012, April Jones disappeared from outside her home in Wales, never to be seen again. Her abductor, and murderer, was found to be Mark Bridger.

The story of Steven Grieveson, the so-called `Sunderland Strangler', who murdered four teenage boys before his capture.

The Crossbow Cannibal: A chilling look at Stephen Griffiths, who in 2009 viciously murdered three women - one in blatant view of a CCTV camera.

When Tia Sharpe disappeared, Stuart Hazell helped police search for her. But in reality he'd murdered the 12-year-old schoolgirl.