- HD 1080
- Runtime: 74m.
- Status: Released
0
- Languages: en
- Country: United States of America
- Director: Tay Garnett
- Stars: Loretta Young, Barry Sullivan, Bruce Cowling, Margalo Gillmore, Brad Morrow
- keywords: letter, postman, film noir, b movie
- Production_studio: Metro-Goldwyn-Mayer
- Slogan: This Girl Is In Danger!
- providers: fuboTV, Epix Amazon Channel, MGM Plus Roku Premium Channel, MGM Plus, Pure Flix, Cultpix, Troma NOW
- The Cause for Alarm! is featured in the top rankings of 1951
- #70 in Top Drama Movies of 1951
- #23 in Top Crime Movies of 1951
- #27 in Top Thriller Movies of 1951
A bedridden and gravely ill man believes his wife and doctor are conspiring to kill him, and outlines his suspicions in a letter.