Watch Movies2Watch. In Hanover, Germany 1924, the discovery of bones and skulls catches the authorities’ attention. Media covers the case and a suspect – Fritz Haarmann – is quickly arrested. Haarmann is a local butcher who manufactures his own sausages. Friedrich Heinrich Karl "Fritz" Haarmann (25 October 1879 – 15 April 1925) was a German serial killer, known as the Butcher of Hanover and the Vampire of Hanover, who committed the sexual assault, murder, mutilation and dismemberment of a minimum of 24 boys and young men between 1918 and 1924 in Hanover, Germany.