An ex-military accountant is recruited by the FBI to infiltrate the mob in Chicago in an attempt to break open the rackets. To complicate his job, two women stand in his way, each with their own agenda.
| Directing | Fred F. Sears | Director |
| Writing | Joseph Hoffman | Screenplay |
| Writing | William Sackheim | Story |
| Directing | Leonard Katzman | Assistant Director |
| Sound | Arthur Morton | Original Music Composer |
| Sound | George Duning | Original Music Composer |
| Production | Sam Katzman | Producer |
| Camera | Henry Freulich | Director of Photography |
| Production | Leon Chooluck | Unit Manager |
| Art | Paul Palmentola | Art Direction |
| Sound | Ross DiMaggio | Conductor |
| Crew | Jack Erickson | Special Effects |
| Camera | Fred Jackman Jr. | Director of Photography |
| Sound | Marlin Skiles | Original Music Composer |
| Art | Sidney Clifford | Set Decoration |
| Editing | Viola Lawrence | Editor |
| Sound | J.S. Westmoreland | Sound |
