Private eye Mike Shayne encounters a large amount of trouble while attempting to guard a murder witness.
| Writing | Frederick Nebel | Novel |
| Production | Sol M. Wurtzel | Producer |
| Directing | Eugene Forde | Director |
| Writing | Stanley Rauh | Screenplay |
| Writing | Brett Halliday | Characters |
| Writing | Lou Breslow | Screenplay |
| Camera | J. Peverell Marley | Director of Photography |
| Art | Lewis H. Creber | Art Direction |
| Editing | Fred Allen | Editor |
| Sound | Cyril J. Mockridge | Music |
| Costume & Make-Up | Herschel McCoy | Costume Design |
| Art | Thomas Little | Set Decoration |
| Sound | Harry M. Leonard | Sound Designer |
| Art | Richard Day | Art Direction |
| Sound | Joseph E. Aiken | Sound Designer |
