Produced on a low budget, with a sterling cast of actors’ actors, this picture just oozes with class because of the excellent adaptation and direction it has been given by radio’s Arch Oboler, author of the story, Alter Ego, on which the film is based. Climax follows climax, strong performance follows strong performance in this thrilling psychopathic study of a girl obsessed by an inner voice that drives her to murder.
Phyllis Thaxter carries the major burden in this one, and Oboler’s direction guides her to new dramatic heights. She’s in fast company here, with Edmund Gwenn, co-starred in the role of a psychiatrist who endeavors to drive out the troubled girl’s obsessions, registering tellingly.
Yarn is told in flashbacks, an eerie musical score by Bronislau Kaper adding to the suspense. Set to wed, Joan Ellis (Thaxter) hears a voice which she cannot drive away. She flees to another city, tries to escape her tormentor, even goes out with another man, a lawyer. But little words dropped at the most unexpected moments bring the voice back. It tells her to kill her hometown boy friend who came to take her home.
Entire production consists of stock sets, narration being depended upon to do the work. Oboler, in a way, uses radio technique in pictures. He definitely has something different to offer Hollywood.