When composer George Harvey Bone wakes with no memory of the previous night and a bloody knife in his pocket, he worries that he has committed a crime. On the advice of Dr. Middleton, Bone agrees to relax, going to a music performance by singer Netta Longdon. Riveted by Netta, Bone agrees to write songs for her rather than his own concerto. However, Bone soon grows jealous of Netta and worries about controlling himself during his spells.
| Directing | John Brahm | Director |
| Writing | Patrick Hamilton | Novel |
| Writing | Barré Lyndon | Screenplay |
| Production | Robert Bassler | Producer |
| Sound | Bernard Herrmann | Original Music Composer |
| Camera | Joseph LaShelle | Director of Photography |
| Editing | Harry Reynolds | Editor |
| Production | Gertrude Kingston | Research Assistant |
| Production | Frances C. Richardson | Researcher |
| Art | Maurice Ransford | Art Direction |
| Art | Lyle R. Wheeler | Art Direction |
| Art | Thomas Little | Set Decoration |
| Costume & Make-Up | René Hubert | Costume Design |
| Costume & Make-Up | Kay Nelson | Costume Design |
| Costume & Make-Up | Ben Nye | Makeup Artist |
| Sound | Bernard Freericks | Sound |
| Sound | Harry M. Leonard | Sound |
| Visual Effects | Fred Sersen | Visual Effects |
