One night, a married couple's bathroom water heater breaks down, leaving them without hot water. The husband manages to get permission for his wife to use the large public bath at his company's male employee dormitory. The wife hesitates, saying, "It's a men's dormitory... wouldn't it be strange for me to go there?" but her husband insists it's fine. Carrying towels and soap, they head to the dorm. Inside the spacious bathhouse, she begins to relax and enjoys her bath, but her alluring presence as a married woman quickly draws the attention of the male employees, creating a tense and thrilling atmosphere filled with excitement and humiliation.