The murder of a Hamburg barmaid seems an open-and-shut case until a recently demobilized Nazi soldier, reassigned to the police force, suspects it’s the work of a serial killer. His efforts to bring the murderer to justice run afoul of the Reich, which fears the culprit is Aryan—not the foreigner, gypsy or Jew they would prefer. Director Robert Siodmak, the greatest practitioner of Hollywood noir (Criss Cross, The Killers, Phantom Lady, et al.), returned to Germany in the 1950s to finish his career. This was the most powerful film of those later years, a subtle yet scathing payback to the Nazis that chased him from his homeland. Based on the true story of murderer Bruno Lüdke, Siodmak creates a tense policier that’s also a psychological drama exploring how some of those who did not flee the Reich struggled to maintain their integrity and morality in the face of overwhelming corruption and evil.