Mark Fallon, with partner Kansas John Polly, tries to introduce honest gambling on the riverboats. His first success makes enemies of the crooked gamblers and of fair Angelique Dureau, whose necklace he won. Later in New Orleans, Mark befriends Angelique's father, but she still affects to despise him as his gambling career brings him wealth. Duelling, tragedy, and romantic complications follow.
| Writing | Seton I. Miller | Screenplay |
| Directing | Rudolph Maté | Director |
| Production | Ted Richmond | Producer |
| Sound | Frank Skinner | Music |
| Camera | Irving Glassberg | Director of Photography |
| Editing | Edward Curtiss | Editor |
| Writing | Seton I. Miller | Story |
| Art | Alexander Golitzen | Art Direction |
| Art | Richard H. Riedel | Art Direction |
| Art | Russell A. Gausman | Set Decoration |
| Art | Julia Heron | Set Decoration |
| Sound | Leslie I. Carey | Sound |
| Sound | Richard DeWeese | Sound |
| Crew | Gwen Verdon | Choreographer |
| Costume & Make-Up | Bill Thomas | Costume Design |
| Costume & Make-Up | Joan St. Oegger | Hairstylist |
| Costume & Make-Up | Bud Westmore | Makeup Artist |
| Directing | John Sherwood | Assistant Director |
