After three British agents are assigned to assassinate a mysterious German spy during World War I, two of them become ambivalent when their duty to the mission conflicts with their consciences.
| Costume & Make-Up | Joe Strassner | Costume Design |
| Crew | Phillip Dorté | Sound Recordist |
| Art | Oscar Friedrich Werndorff | Art Direction |
| Sound | Hubert Bath | Music |
| Costume & Make-Up | Albert Jullion | Set Dressing Artist |
| Writing | W. Somerset Maugham | Novel |
| Production | Ivor Montagu | Producer |
| Writing | Campbell Dixon | Theatre Play |
| Camera | Bernard Knowles | Director of Photography |
| Editing | Charles Frend | Editor |
| Writing | Charles Bennett | Screenplay |
| Production | Michael Balcon | Producer |
| Directing | Alfred Hitchcock | Director |
| Camera | Stephen Dade | Camera Operator |
| Writing | Ian Hay | Writer |
| Writing | Jesse Lasky Jr. | Writer |
| Sound | John Greenwood | Music |
| Sound | Louis Levy | Music Director |
| Directing | Pen Tennyson | Assistant Director |
| Art | Albert Jullion | Set Dresser |
| Sound | Philip Dorté | Sound Recordist |
| Camera | Reg Johnson | Assistant Camera |
| Camera | Gerry Massy-Collier | Assistant Camera |
