Infamous burglar "The Bat" commits a daring jewelry theft despite heavy police presence. Soon after, a bank theft occurs, which may be the work of the criminal as well. Meanwhile, Cornelia Van Gorder has various people arrive at her old mansion, including her niece, Dale, a bank employee, and police detective Anderson. When guests start turning up dead, Cornelia begins to suspect that The Bat may be lurking around the estate.
| Directing | Roland West | Director |
| Editing | James Smith | Editor |
| Art | Paul Crawley | Set Decoration |
| Editing | Hal C. Kern | Editor |
| Writing | Roland West | Writer |
| Production | Joseph M. Schenck | Producer |
| Sound | Oscar Lagerstrom | Sound |
| Writing | Avery Hopwood | Theatre Play |
| Camera | Robert H. Planck | Director of Photography |
| Directing | Roger Heman Sr. | Assistant Director |
| Writing | Mary Roberts Rinehart | Theatre Play |
| Costume & Make-Up | S.E. Jennings | Makeup Artist |
| Camera | Ray June | Director of Photography |
| Production | Helen Hallett | Production Manager |
