[spoilers][in the public domain, it's available here]
The director of this Loretta Young thriller also handled The Postman Always Rings Twice, so it is not surprising that it was a well put together little thriller. This was one of Young's final films (1951). They both had long careers in various types of efforts as did the character actor who plays the postman here (he had the same role in the Blondie series of films). The cast as a whole -- as is key to good films -- works well.
I have yet to see the other one (it's on the list), but from what I heard, both have plenty of atmosphere and a feeling of growing dread. Wikipedia labelled it "film noir," and though it doesn't quite seem to have that flavor, since Young's stressed out housewife does not "emphasize cynical attitudes and sexual motivations." But, the movie does suggest the darkness that hides in innocent suburban (contrasted with the cute neighbor boy and two guys working on their car) and there is some underlining sexual tension, the doctor always having a thing for Young while her husband here clearly has issues that his later heart condition / not fully described mental deterioration only aggravated. His aunt referenced, even if she was miffed at the time, his bad side.
This time it was a DVD copy with a colorized box, but the film itself is in B&W. Young is a housewife who met her husband earlier during the war. It comes out that the doctor, who she used to work for, that is now taking care of him -- he has a heart condition etc. -- was an old friend. This adds to his delusions that the two are trying to kill him, so as he stresses out his wife by being more and more unbalanced, he writes a letter to the DA about their "plot," citing a few suspicious details. He has his wife give the letter to the postman and then tries to kill her, dying from the exertion. Our heroine Ellen (so stressed out, housework is no longer fun!) is really stressed now, plus must get that letter back! The stress builds.
Though feminists might not quite like the character -- we see a bit more of her figure (in a one piece bathing suit too) but she was much more liberated in Big Business Girl -- the film as a whole is a well designed stress packed seventy-five minutes. Her narration helps us understand her growing stress and feeling that she is all alone. We also get a good sense of the suburban setting with a well done light flashback that serves as good foreshadowing in various ways too. A twist is a bit expected.
I liked it better than the last one. Put more old films on the list!