Wrongfully convicted of a robbery and murder, Paul Lavond breaks out of prison with a genius scientist who has devised a way to shrink humans. When the scientist dies during the escape, Lavond heads for his lab, using the shrinking technology to get even with those who framed him and vindicate himself in both the public eye and the eyes of his daughter, Lorraine. When an accident leaves a crazed assistant dead, however, Lavond must again make an escape.
| Sound | Franz Waxman | Original Music Composer |
| Directing | Tod Browning | Director |
| Production | Tod Browning | Producer |
| Writing | Tod Browning | Screenstory |
| Writing | Garrett Fort | Screenplay |
| Writing | Guy Endore | Screenplay |
| Writing | Erich von Stroheim | Screenplay |
| Camera | Leonard Smith | Director of Photography |
| Editing | Fredrick Y. Smith | Editor |
| Art | Cedric Gibbons | Art Direction |
| Writing | Abraham Merritt | Novel |
| Art | Stan Rogers | Assistant Art Director |
| Art | Edwin B. Willis | Assistant Art Director |
| Sound | Douglas Shearer | Recording Supervision |
| Costume & Make-Up | Dolly Tree | Wardrobe Designer |
| Production | E.J. Mannix | Producer |
| Costume & Make-Up | Robert J. Schiffer | Makeup Artist |
| Directing | Harry Sharrock | Assistant Director |
| Camera | Willard Vogel | Additional Photography |
| Sound | Wayne Allen | Orchestrator |
| Sound | Paul Marquardt | Orchestrator |
| Sound | Clifford Vaughan | Orchestrator |
| Sound | Edward Ward | Music |
| Crew | Paul Foltz | Stunt Double |
| Crew | Val Raset | Choreographer |
