Larry Morgan, a private detective, is hired by a woman who wants Larry to trail her husband. The husband is murdered and, shortly afterwards, the wife is also killed. Larry shuffles through a long list of suspects before revealing the killer...
Unfortunately the movie The Crimson Key is not yet available on HBO Max.
| Directing | Eugene Forde | Director |
| Production | Sol M. Wurtzel | Producer |
| Writing | Irving Elman | Screenplay |
| Sound | Buddy Myers | Sound Engineer |
| Costume & Make-Up | Irene Beshon | Hairstylist |
| Costume & Make-Up | Kay Nelson | Costume Design |
| Sound | R. Dale Butts | Original Music Composer |
| Production | Howard Sheehan | Associate Producer |
| Art | Albert Greenwood | Set Decoration |
| Camera | Benjamin H. Kline | Director of Photography |
| Editing | William F. Claxton | Editor |
| Art | Eddie Imazu | Art Direction |
| Costume & Make-Up | Robert Cowan | Makeup Artist |
| Sound | Morton Scott | Music Director |
| Editing | Frank Baldridge | Editor |
| Directing | Paul Wurtzel | Assistant Director |
