Lost Caverns Hotel bellhop Freddie Phillips is suspected of murder. Swami Talpur tries to hypnotize Freddie into confessing, but Freddie is too stupid for the plot to work. Inspector Wellman uses Freddie to get the killer (and it isn't the Swami).
| Directing | Charles Barton | Director |
| Camera | Lloyd Ward | Camera Operator |
| Writing | Hugh Wedlock Jr. | Story |
| Writing | Hugh Wedlock Jr. | Screenplay |
| Writing | Howard Snyder | Story |
| Writing | Howard Snyder | Screenplay |
| Writing | John Grant | Screenplay |
| Production | Robert Arthur | Producer |
| Sound | Milton Schwarzwald | Original Music Composer |
| Camera | Charles Van Enger | Director of Photography |
| Editing | Edward Curtiss | Editor |
| Art | Bernard Herzbrun | Art Direction |
| Art | Richard H. Riedel | Art Direction |
| Art | Oliver Emert | Set Decoration |
| Art | Russell A. Gausman | Set Decoration |
| Costume & Make-Up | Rosemary Odell | Costume Design |
| Costume & Make-Up | Joan St. Oegger | Hairstylist |
| Costume & Make-Up | Bud Westmore | Makeup Artist |
| Crew | David S. Horsley | Special Effects |
| Writing | Oscar Brodney | Writer |
| Costume & Make-Up | Layne Britton | Makeup Artist |
| Costume & Make-Up | Lillian Burkhart | Hairstylist |
| Production | Gilbert Kurland | Production Manager |
| Directing | Joseph E. Kenney | Assistant Director |
| Sound | Leslie I. Carey | Sound |
| Sound | Robert Pritchard | Sound |
| Camera | Fred Buckley | Grip |
| Camera | Sherman Clark | Still Photographer |
| Lighting | Ross Saxon | Gaffer |
| Sound | Daniele Amfitheatrof | Music |
| Sound | Johnny Green | Music |
| Sound | Ethmer Roten | Musician |
| Sound | Hans J. Salter | Music |
| Sound | Paul Sawtell | Music |
| Sound | Walter Schumann | Music |
| Sound | Milton Schwarzwald | Music Director |
| Sound | Frank Skinner | Music |
| Sound | Leith Stevens | Music |
| Directing | Betty A. Griffin | Script Supervisor |
