Peeping Tom (movie)

Peeping Tom is a 1960 British psychological horror-thriller movie directed by Michael Powell and written by Leo Marks. She stars Carl Boehm, Anna Massey, and Moira Shearer. The movie revolves around a serial killer who murders women while using a portable movie camera.
When released it had bad reviews, but over the years the movie became a cult classic. The movie is thought to be the first slasher horror movie.