Mysterious Intruder (1946)
Genres: Noir, Mystery
Cast: Richard Dix, Barton MacLane, Nina Vale
Mysterious Intruder is a 1946 American mystery film noir based on the radio drama The Whistler. Directed by William Castle, the production features Richard Dix, Barton MacLane and Nina Vale. It is the fifth of Columbia Pictures' eight "Whistler" films produced in the 1940s, the first seven starring Dix.