Ministry of Fear

Ministry of Fear is a 1944 American film noir directed by Fritz Lang. Based on a novel by Graham Greene, the film tells the story of a man just released from a mental asylum who finds himself caught up in an international spy ring and pursued by foreign agents after inadvertently receiving something they want. The original music for the film was composed by Mikls Rzsa and Victor Young.

Neale departs Lembridge with only a blind man Eustace Wyatt sharing his compartment. Neale offers him some cake. Neale sees the blind man crumbling his portion. When the train stops during a Luftwaffe air raid, Neales companion turns out not to be blind after all. He strikes Neale with his cane, steals the cake, and flees, with Neale in pursuit. The man shoots at him, but is killed by a German bomb. Neale finds his revolver and continues on to London.Neale hires private detective George Rennit Erskine Sanford to help him investigate the Mothers of Free Nations. Neale meets Willi Carl Esmond and Carla Hilfe Marjorie Reynolds, refugees from Nazi Austria who run the charity. Willi takes him to Mrs. Bellanes London mansion followed by Rennit. Neale is shocked to discover that this Mrs. Bellane Hillary Brooke is a beautiful young medium. She invites them to stay for her sance. Among the other attendees are artist Martha Panteel Mary Field, psychiatrist Dr. Forrester Alan Napier, and Mr. Cost Dan Duryea, the blond man at the fte. After the lights are dimmed, a mysterious voice claims she was poisoned by Stephen, disconcerting Neale. Then a shot rings out Cost is found shot dead. Neale admits to having the blind mans gun. He flees with Willis help. ........

Source: Wikipedia