A detailed account of Joachim Kroll, the Ruhr Cannibal: two decades of undetected murder, the plumbing complaint that exposed him, and his 1982 conviction.

Guy Georges, the 'Beast of the Bastille', murdered seven young women in 1990s Paris. His case became a landmark in the use of DNA evidence in France.

Francis Heaulme, the 'Criminal Backpacker', wandered France committing murders for years — and an innocent teenager was wrongly jailed for one of his crimes.

Fritz Honka murdered vulnerable women he met in a seedy Hamburg bar and hid their remains in his attic. A grim case from Germany's red-light district.

Colin Ireland, the 'Gay Slayer', murdered five gay men in 1993 London in a cold, calculated bid to become a serial killer. Inside one of Britain's chilling cases.

Manuel Blanco Romasanta, the 'Werewolf of Allariz', was Spain's first documented serial killer, who claimed a werewolf curse drove him to murder in 1840s Galicia.

The story of Bruce McArthur, the Toronto landscaper and part-time mall Santa who murdered eight men linked to the city's Gay Village and hid their remains in garden planters.

The story of Juana Barraza, 'La Mataviejitas': a Mexican lucha libre wrestler who strangled elderly women across Mexico City and received a 759-year sentence.

The story of Herbert Mullin, the paranoid-schizophrenic 'Earthquake Killer' who murdered 13 people in Santa Cruz in 1972–1973, believing the deaths prevented earthquakes.

The story of Levi Bellfield, the British 'Bus Stop Killer' who murdered Milly Dowler, Marsha McDonnell and Amelie Delagrange and became the first prisoner handed two whole-life orders.

The story of Joseph Naso, the American photographer and 'Double Initial Killer' convicted of murdering four women whose first and last names shared the same letter.

Christopher Wilder, the 'Beauty Queen Killer', lured aspiring models with his camera during a 1984 cross-country spree, killing at least eight women.

Gilbert Paul Jordan, the 'Boozing Barber', killed vulnerable Indigenous women in Vancouver with lethal alcohol — a case central to Canada's missing-women reckoning.

Robert Berdella, the 'Kansas City Butcher', held young men captive in his Missouri home in the 1980s. His crimes were exposed when one victim escaped.

Mark Goudeau, the 'Baseline Killer', terrorised Phoenix in 2005-2006 with murders, rapes and robberies — as a second serial killer struck the same city.

Donald 'Pee Wee' Gaskins, the South Carolina serial killer who kept a private graveyard, was convicted of murder and executed in 1991. Inside his chilling crimes.

Robert Lee Yates, a decorated Army helicopter pilot, secretly murdered at least 16 women in Washington State. A devoted family man by day, a killer by night.

Manuel Delgado Villegas, 'El Arropiero', confessed to dozens of murders across Spain, France and Italy. Spain's most prolific serial killer was never put on trial.

A comprehensive account of the Marc Dutroux case: the 1989 warning signs, the 1995–1996 abductions, the policing failures, the White March, and the 2004 trial that reshaped Belgium.

Paul Bernardo and Karla Homolka looked like a perfect young couple. Behind the facade lay a string of rapes and the murders of three teenage girls — and a plea deal Canadians never forgave.