Maki is a married Maki in her third year of marriage to her younger husband. She currently lives with her husband and her brother-in-law, who was transferred overseas this summer. As soon as her brother-in-law returns to Japan, her husband is ordered to go on a business trip. While they are away, Maki changes into the swimsuit she ordered and does housework to beat the heat, but while she is cleaning, the circuit breaker breaks down. It will take a week to get it fixed, and Maki, fed up with the sweltering heat, places a bucket on the veranda and goes to bathe in her swimsuit, when her brother-in-law sees her...