When Dr. Anthony Edwardes arrives at a Vermont mental hospital to replace the outgoing hospital director, Dr. Constance Peterson, a psychoanalyst, discovers Edwardes is actually an impostor. The man confesses that the real Dr. Edwardes is dead and fears he may have killed him, but cannot recall anything. Dr. Peterson, however is convinced his impostor is innocent of the man's murder, and joins him on a quest to unravel his amnesia through psychoanalysis.
| Directing | Alfred Hitchcock | Director |
| Writing | Ben Hecht | Screenplay |
| Production | David O. Selznick | Producer |
| Sound | Miklós Rózsa | Original Music Composer |
| Art | James Basevi | Art Direction |
| Camera | George Barnes | Director of Photography |
| Art | Salvador Dalí | Art Direction |
| Crew | Clarence Slifer | Special Effects |
| Writing | John Palmer | Novel |
| Writing | Hilary St George Saunders | Novel |
| Production | Fred Ahern | Unit Manager |
| Production | Richard Johnston | Production Manager |
| Directing | Lowell J. Farrell | Assistant Director |
| Directing | Charles Barton | Second Unit Director |
| Art | John Ewing | Assistant Art Director |
| Art | Emile Kuri | Interior Designer |
| Sound | Richard DeWeese | Sound Recordist |
| Sound | Arthur Johns | Sound |
| Crew | Jack Cosgrove | Special Effects |
| Writing | Angus MacPhail | Screenplay |
