Wife's Obsession With Checking Underwear

An erotic film about a husband and a wife who end up swapping partners because of their respective sexual desires.

Park Joon-yeong lives in a room styled with collages of women's faces and photos cut out of magazines. While walking around the neighborhood and taking pictures, Jun-yeong accidentally encounters Da-hye, a married woman. Joon-yeong is hooked on Da-hye as soon as he saw her for the first time. One day, Jun-yeong sees Da-hye with her husband Yoon Seong-gyoo and sees a shocking scene.

A camping girl ran away to the camping site because she was in debt, and so she went camping for a long time. However, her life at the camping site is not easy. She falls into debt again due to Sin Ha-seong, the owner of the camping site. She starts working hard to make money at the camping site. The owner steals her money and holds them.

New couple Na-ni and Joon-seo left the stuffy Seoul to try and start a cafe in the countryside. Behind the couple's attempt to change, they had some unspeakable worries, so they were sexless people who used their own rooms because they were not sexually compatible. Regardless of her husband's efforts to establish a relationship, her wife Na-ni has long been on an extramarital affair with her sex partner Dal-ho, who has been embroiled in a hit-and-run accident that she never thought of enjoying sex outdoors and is asked for a large settlement.

Yeon-jeong is a girl crush who has a sexy body and good education. She became a team leader by beating up men her age. Yoo Ah-rin, an intern, keeps getting on her nerves. All she is, is a local university graduate, with a pretty face. A corporate slave! Feeling pity for Ah-rin, who is in charge of her bosses' chores, Yeon-jeong claims to be a shooter to protect Ah-rin from male employees, and Ah-rin, a new employee who thought it was a mugwort, starts to covet her things little by little. Ah-rin, a new employee who she only thought was an idiot, begins to covet her love affairs little by little.

Joo-man starts an affair with the younger Jin-nyeo and drives out his wife, Soon-jeong. Soon-jeong, who was kicked out to an empty house, meets a robber, Do-sik. At first, she was bullied by Do-sik, but she turned it around and began abusing him instead. Do-sik suddenly falls in love with Soon-jeong, and the two eventually plot to kidnap Joo-man and Jin-nyeo.