Dr. Hohner, the house physician at Vienna's Royal Theatre, murders his opera star mistress. When new soprano Angela arrives, her identical voice drives Hohner to hypnotize her, making her incapable of singing. The love of a composer frees Angela of the doctor's evil influence, but Hohner-driven to insanity-now plots to silence the soprano forever.
IMDb 5,4/1019441 t 26 min 
