Powell was previously the director of heartwarming films such as The Red Shoes and A Matter of Life and Death with his collaborator Emeric Pressburger, and Peeping Tom was both his first solo film and his first horror film.
After Peeping Tom was released in 1960, Powell was ostracised by the film world. His offence, it seemed, was to have made a horror movie that was genuinely horrific.
The film was written by the World War II cryptographer and polymath Leo Marks, and starred Carl Boehm and Anna Massey.