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.
| Writing | Barré Lyndon | Screenplay |
| Production | Robert Bassler | Producer |
| Directing | John Brahm | Director |
| Camera | Joseph LaShelle | Director of Photography |
| Editing | Harry Reynolds | Editor |
| Writing | Patrick Hamilton | Novel |
| Sound | Bernard Herrmann | Original Music Composer |
| Production | Gertrude Kingston | Research Assistant |
| Production | Frances C. Richardson | Researcher |
| Art | Lyle R. Wheeler | Art Direction |
| Costume & Make-Up | Ben Nye | Makeup Artist |
| Visual Effects | Fred Sersen | Visual Effects |
| Art | Thomas Little | Set Decoration |
| Costume & Make-Up | Kay Nelson | Costume Design |
| Sound | Harry M. Leonard | Sound |
| Art | Maurice Ransford | Art Direction |
| Costume & Make-Up | René Hubert | Costume Design |
| Sound | Bernard Freericks | Sound |
