ObscureHollywood.net’s review published on Letterboxd:
Housewife Loretta Young narrates the story of the most terrifying day of her life. In the morning, she is attempting to carry on her normal activities, but that is difficult. Her husband, Barry Sullivan, is sick in bed and needs her care. She is hoping he will be better soon, and their life can return to normal. The deranged husband’s thoughts are different. He believes he is being slowly poisoned by his wife and his doctor and does not intend to die unavenged. Sullivan has been making unusual statements, but Young placidly mails a letter for him.
When Young brings Sullivan his lunch, she is alarmed by his outlandish accusations about a plan to kill him. She is terrified when he tells her about the accusatory letter he wrote the District Attorney, takes out a gun to shoot her, and drops dead of a heart attack.
Her first thought is to get the letter. Getting the letter proves difficult. The mailman cannot give it to her. She must go downtown to the main postoffice and request its return. As she prepares to go to the postoffice, a notary who had an appointment with her husband comes to the door. He is persistent, but she gets rid of him. Her husband’s aunt brings a dessert for her nephew and wants to see him. Young finally turns her away. At the main postoffice, she is unable to get the letter.
Young returns home thinking that the police will arrive soon wanting to talk to her husband. When the doctor comes, she tells him the whole story. He calms her. The mailman knocks at the door. He has the letter, she must mail it again with sufficient postage attached. She collapses into a chair as the doctor burns the letter.
Young gives a first-rate performance as the stunned woman suddenly facing a criminal investigation into the death of her husband. Getting the letter is paramount. The tension builds as she attempts to retrieve the letter and obstacles keep popping up. The outcome looks bad. At last moment, a neat plot twist ends the drama.