Mild-mannered, newly engaged Joan (Phyllis Thaxter) is hiding a terrible secret from her fiancé: a tormenting, depraved inner voice struggling to take over. Joan’s attempt to live a normal life and thwart the homicidal impulses of “Karen” unleashes a deadly drive for vengeance. Famed radio writer Arch Oboler directs the adaptation of his gripping psychological thriller.
16mm, b/w, 65 min. Production: Metro-Goldwyn-Mayer Corp. Distribution: Loew’s Inc. Producer: Jerry Bresler. Director: Arch Oboler. Screenwriter: Arch Oboler. Cinematographer: Charles Salerno Jr. Editor: Harry Komer. With: Edmund Gwenn, Phyllis Thaxter, Harry H. Daniels Jr., Addison Richards, Kathleen Lockhart.
