John Allen and Lee Malvo: The story of the Beltway sniper attacks. John Allen and his teenage accomplice carried out the brutal series of shootings that killed 10.

A profile of Ed Gein, the killer and body-snatcher who came to be known as the `Butcher of Plainfield', and whose story is thought to have inspired Alfred Hitchcock's Psycho.

A profile of Derrick Todd Lee, who murdered seven women in the Baton Rouge area of Louisiana, and was sentenced to death for his chilling crimes.

A profile of the ghastly German serial killer who hunted and ate parts of his victims, earning him the title of the 'Ruhr Cannibal'.

An insight into the crimes of Jeffrey Dahmer, the American serial killer dubbed the `Milwaukee Cannibal' after he raped, murdered and dismembered 17 people between 1978 and 1991

Documentary profiling Chicago killer John Wayne Gacy, who was well-liked by his local community, until it emerged he had ended the lives of 33 men in the 1970s.

The story of the cold-blooded serial killer who took the lives of at least fifteen people during a terrifying decade-long murder campaign.

The chilling story of the serial killer who worked as a nurse in Texas, where she killed many children and infants by injecting them with drugs.

Profiling the Belgian serial killer, convicted for kidnapping, torturing and sexually abusing six victims until his arrest in 1996.

The story of the serial killer Sean Vincent Gillis, who brutally snatched away the lives of eight innocent women during a decade-long killing spree in Louisiana.

The story of one of the most prolific serial killers in Canadian history, dubbed `The Pig Farmer Killer' by the media.

An account of the German serial killer Fritz Honka, whose insecurities over his height and peculiar sexual habits led to him killing four prostitutes

A profile of Volker Eckert, the German truck driver who used his constant travelling to spread his killing spree across Europe.

An insight into the crimes of Thierry Paulin, who attacked, robbed and murdered at least 18 elderly women in France during the 1980s, to fund his extravagant lifestyle.

The story of Judy Buenoano, the first woman in Florida to die in the electric chair. She was a killer so evil that her own son became one of her victims.

Serial killer Gary Ray Bowles, who took the lives of six men in 1994, and became known as the I-95 Killer, as most of his victims lived close to the Interstate 95 highway.

The story of Velma Barfield, the first woman to be executed by lethal injection after taking six lives.

The story of a terrifying killer who snatched away the lives of four victims before being caught while trying to claim his fifth.

Serial killer Edmund Kemper killed six women in California and several members of his family.

Exhibiting cruelty, callousness, and viciousness beyond any human understanding, Richard Ramirez terrorized Los Angeles with his spate of home invasions.

The story of the "Death House Landlady", who took in elderly and disabled tenants, only to murder them for their social security paychecks

The chilling case of a Hong Kong kleptomaniac and a Vietnam veteran who committed a series of horrific murders from their cabin in California.

Also known as the Yosemite Park Killer, Cary Stayner murdered four women in 1999 before his capture. Were his actions the result of a tragic childhood?

Examining the murderer who appeared on a dating game show in the midst of a killing spree that may have claimed as many as 130 victims.

The disturbing case of 53-year-old German Horst Kroener, who was jailed in 2016 for murdering his Filipina wife in her sleep.