Cause for Alarm! (1951)

 

 

 

An invalid husband wrongly believes his wife and doctor are conspiring to kill him and outlines that suspicion in a letter, which causes a serious concern when he ends up dying anyway.

Interesting daytime Noir thriller neatly dials up the dread factor, until the plot is resolved in a surprising and humorous twist.
 

Halliwell*: "Minor-league suspenser, watchable but disappointingly handled."

Maltin***: "Simple, effective thriller...Tension builds, and there's a neat plot twist."