Peeping Tom

What made this the most diabolical murder weapon ever used?

A deeply unsettling psychological thriller that uses cinema itself as a weapon, exploring voyeurism, trauma, and the male gaze through the fractured mind of a serial killer.

Loner Mark Lewis works at a film studio during the day and, at night, takes racy photographs of women. Also he's making a documentary on fear, which involves recording the reactions of victims as he murders them. He befriends Helen, the daughter of the family living in the apartment below his, and he tells her vaguely about the movie he is making.