A bedridden and gravely ill man believes his wife and doctor are conspiring to kill him, and outlines his suspicions in a letter.
You can now watch Cause for Alarm! online on the following streaming providers in the United States.
| Directing | Tay Garnett | Director |
| Writing | Mel Dinelli | Screenplay |
| Writing | Tom Lewis | Screenplay |
| Writing | Lawrence B. Marcus | Story |
| Production | Tom Lewis | Producer |
| Sound | André Previn | Original Music Composer |
| Camera | Joseph Ruttenberg | Director of Photography |
| Editing | James E. Newcom | Editor |
| Art | Cedric Gibbons | Art Direction |
| Art | Arthur Lonergan | Art Direction |
| Art | Edwin B. Willis | Set Decoration |
| Costume & Make-Up | Sydney Guilaroff | Hair Designer |
| Costume & Make-Up | William Tuttle | Makeup Designer |
| Directing | Jack Greenwood | Assistant Director |
| Art | Alfred E. Spencer | Set Decoration |
| Sound | Douglas Shearer | Recording Supervision |
| Sound | Leo Arnaud | Orchestrator |
| Sound | Wally Heglin | Orchestrator |
