Episodes

In 2007, Sanna Garoës’s hacked remains were found along Namibia’s roads. Were three other unsolved murders linked to the B1 Butcher?

Edgar Allan Poe died under bizarre circumstances in 1849. Nearly two centuries later, the mystery of his final days endures.

Four murders, a village bound by silence, and secrets hidden for decades in the Italian Alps. The Alleghe Murders finally unravelled.

A mysterious gang terrorises Japan's biggest food companies with kidnapping, poison threats and taunting letters—then vanishes.

Police uncover dozens of victims beneath John Wayne Gacy's home, exposing one of America's deadliest serial killers.

Robert Piest's disappearance leads police to John Wayne Gacy, where mounting evidence points to a horrifying secret beneath his home.

Two men found dead on a hilltop with cryptic notes and enigmatic masks. What were they searching for?

One of Australia's most infamous cold cases. The 1977 Easey Street murders, the decades-long investigation, and the breakthrough that changed everything.

A French student murdered over a drug debt — her body dissolved in acid by killers inspired by Breaking Bad. Toulouse, 2015.