Although Charlie and Lee are in Monaco for an art exhibit, they become caught up in a feud between rival financiers which involves the Chan's in a web of blackmail and murder.
| Writing | Earl Derr Biggers | Characters |
| Writing | Charles Belden | Screenplay |
| Writing | Jerome Cady | Screenplay |
| Directing | Eugene Forde | Director |
| Writing | Charles Belden | Writer |
| Production | John Stone | Associate Producer |
| Camera | Daniel B. Clark | Director of Photography |
| Editing | Nick DeMaggio | Editor |
| Art | Bernard Herzbrun | Art Direction |
| Costume & Make-Up | Herschel McCoy | Costume Design |
| Directing | Saul Wurtzel | Assistant Director |
| Sound | Bernard Freericks | Sound |
| Sound | Harry M. Leonard | Sound |
| Sound | Samuel Kaylin | Music Director |
| Production | Sol M. Wurtzel | Executive Producer |
