A psychologist takes on the daunting task of getting into the mind of prisoners. He must gain the trust and cooperation from a group of men who have no reason to help him and who might enjoy killing him.
| Directing | Hugo Fregonese | Director |
| Writing | Donald Powell Wilson | Novel |
| Writing | Michael Blankfort | Screenplay |
| Production | Edward Anhalt | Associate Producer |
| Art | Fred M. MacLean | Set Decoration |
| Sound | Dimitri Tiomkin | Music Director |
| Camera | Guy Roe | Director of Photography |
| Production | Edna Anhalt | Associate Producer |
| Editing | Gene Havlick | Editor |
| Art | Rudolph Sternad | Production Design |
| Art | Edward L. Ilou | Art Direction |
| Production | Stanley Kramer | Producer |
| Production | Clem Beauchamp | Production Manager |
| Sound | Lambert E. Day | Sound Engineer |
| Sound | Paul Marquardt | Orchestrator |
| Directing | James E. Casey | Assistant Director |
| Sound | Dimitri Tiomkin | Original Music Composer |
| Sound | Herbert Taylor | Orchestrator |
| Editing | Harry Gerstad | Supervising Editor |
| Sound | Manuel Emanuel | Orchestrator |
| Sound | George Parrish | Orchestrator |
