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.
as Mark Lewis
as Vivian
as Helen Stephens
as Mrs. Stephens
as Dora
as Elderly Gentleman Customer
as Arthur Baden
as Dr. Rosen
as Don Jarvis
as Chief Insp. Gregg
as Pauline Shields
as Milly
as Small Man (uncredited)
as Shop Assistant on Film Set (uncredited)
as Det. Sgt. Miller (uncredited)
as Mark's Father - A.N. Lewis (uncredited)
as Lorraine the Model (uncredited)
as Det. Baxter (uncredited)
as Clapper Boy (uncredited)
as Young Man in Sports Car (uncredited)
as Police Doctor (uncredited)
as Publicity Chief (uncredited)
as Girl Electrician (uncredited)
as Girl in Sports Car Leaving Studio (uncredited)
as Miss Simpson - Jarvis' Secretary (uncredited)
as Lover in Garden (uncredited)
as Lover in Garden (uncredited)
as Mr. Peters - News Agent Shop Owner (uncredited)
as Young Man Embracing Girl (uncredited)
as Mark's Stepmother (uncredited)
as Mark as a Child (uncredited)
as P. Tate - Studio Cameraman (uncredited)
as Mark's Mother on Deathbed (uncredited)
as Store Detective (uncredited)
as Electrician #1 (uncredited)
as Mrs. Partridge (uncredited)
as Policeman (uncredited)
as Tony - Downstairs Lodger in Lewis' House (uncredited)
as Assistant Director (uncredited)
as St John's Medic (uncredited)
as Party Guest (uncredited)
