In this 1941 psychological thriller set in a grimy mill town, Albert Dekker (Dr. Cyclops) plays identical twins: one a respectable businessman with a loving wife (Frances Farmer), the other a psychotic killer escaped from an asylum. The businessman, who grew up believing his brother died in childhood, must catch him or take the fall for his crimes. Stuart Heisler (The Glass Key), a competent B-movie technician, directs from a script by Lester Cole and Garrett Fort. The cinematography is gloomy and noirish but the psychology is simplistic: the bad twin kills whenever he hears a scream that reminds him of mother. The acting is perfunctory except for Dekker’s double star turn and Susan Hayward’s performance as a high-strung single girl who attracts the maniac’s eye.