Hard-boiled newspaper reporter Larry Doyle (Robert Armstrong) goes a bit too far in celebrating a work bonus and wakes up on a train bound for St. Louis with only a buck on his person. To remedy the problem, Doyle pawns the revolver he's carrying. When the gun is subsequently used in a murder, Doyle's problems only multiply. In the meantime, he's also fallen in love with a comely stranger (Maxine Doyle) he convinced to impersonate his wife.
Unfortunately the movie The Mystery Man is not yet available on HBO Max.
| Directing | Ray McCarey | Director |
| Writing | Rollo Lloyd | Screenplay |
| Writing | John W. Krafft | Screenplay |
| Production | Trem Carr | Supervising Producer |
| Editing | Carl Pierson | Editor |
| Writing | Tate Finn | Story |
| Sound | Abe Meyer | Music Director |
| Camera | Harry Neumann | Director of Photography |
| Writing | William A. Johnston | Adaptation |
| Production | George Yohalem | Supervising Producer |
| Art | E.R. Hickson | Art Direction |
| Production | Paul Malvern | Associate Producer |
| Sound | John Stransky Jr. | Sound |
| Sound | Mischa Bakaleinikoff | Original Music Composer |
