In a Scottish sanitarium, a brilliant research psychiatrist works on a treatment for dementia praecox. He falls for his altruistic female lab assistant and they begin a passionate, tragic relationship.
| Directing | Irving Rapper | Director |
| Writing | Howard W. Koch | Screenplay |
| Writing | Anne Froelich | Screenplay |
| Writing | A.J. Cronin | Theatre Play |
| Editing | Warren Low | Editor |
| Art | Carl Jules Weyl | Art Direction |
| Costume & Make-Up | Howard Shoup | Costume Design |
| Camera | James Wong Howe | Director of Photography |
| Sound | Max Steiner | Original Music Composer |
