A doctor testing drugs on convicts gets mixed up in a murder investigation.
| Writing | George W. George | Original Story |
| Writing | George F. Slavin | Original Story |
| Production | Edward L. Cahn | Producer |
| Writing | Orville H. Hampton | Screenplay |
| Camera | Jackson Rose | Director of Photography |
| Directing | Edward L. Cahn | Director |
| Sound | John R. Carter | Sound |
| Costume & Make-Up | Lela Chambers | Hairstylist |
| Art | Boris Leven | Art Direction |
| Directing | Frank Fox | Assistant Director |
| Editing | Philip Cahn | Editor |
| Art | Otto Siegel | Set Decoration |
| Directing | Meta Rebner | Script Supervisor |
| Art | George Bahr | Property Master |
| Costume & Make-Up | Esther Krebs | Wardrobe Supervisor |
| Costume & Make-Up | Frank Tait | Wardrobe Supervisor |
| Costume & Make-Up | Ted Larsen | Makeup Artist |
| Sound | Irving Gertz | Original Music Composer |
