In this suspenseful thriller, Conrad Veidt stars as identical German-born twins—one a loyal American, the other a Nazi official. When the American is coerced into assisting a group of German spies, he ultimately rebels, kills his brother, assumes his identity, and works to dismantle the spy ring from within. Cast: - Conrad Veidt as Otto Becker / Baron Hugo von Detner - Anne Ayars as Kaaren De Relle - Frank Reicher as Fritz - Dorothy Tree as Miss Harper - Ivan F. Simpson as Professor Sterling - Martin Kosleck as Kurt Richten - Marc Lawrence as Joe Aiello - Sidney Blackmer as Arnold Milbar - Moroni Olsen as Brenner - Pierre Watkin as Grover McHenry - Jeff York as Keeler (uncredited) Runtime: 83 minutes