Discover the stories behind some of the world's most notorious murderers, who have haunted the minds of many, and continue to fuel fiction and stories to this day. Who was Elizabeth Bathory, the Bloody Countess? Gilles de Rais, the 15th-century French nobleman? What about Vlad the Emperor? The notorious Jack the Ripper, who terrorized London's Whitechapel district? HH Holmes, the businessman who built the Murder Castle in the 1890s?

‍