While his wife was on vacation, her husband Richard Salman (Tom Ewell) met his third-floor neighbor, a TV commercial star (Marilyn Monroe) because of a flower pot incident. The other party's doll-like beauty made this married man fall for her, and at a cocktail party, when she was playing the piano, he sat next to her and made an indecent move. Afterwards, Tom fell into deep remorse. He sought advice from a psychologist, who pointed out his symptoms and tempted him to pay a high price for treatment. Tom ignored it and began his own psychological analysis, and made a series of fantasies about the matter. He was worried that the gossip would reach his wife's ears, and this worry gradually turned into suspicion that the latter had cheated. So, under the influence of sexual fantasies, Tom made an appointment with the girl to watch a movie together and invited her to his home. The latter coveted his home's air conditioning because the fan at home was not cooling, so he wanted to spend the night here, which resulted in a lot of jokes...