Due to financial difficulties, two couples decide to live together for a while. They never imagined this decision would lead to the biggest crisis between each one of them, after a night that makes them do an unexpected partner swap. But not everything can be shared, their relationships will never be the same again. Forced to live together, they must resolve their differences and face the consequences of their actions.
Sisters Ji-soo and Ji-yeong decided to sell their used underwear due to financial difficulties. Perverted men offer to buy them at a higher price by asking these two sisters for shots of them wearing the underwear. Other men offer to pay even higher prices by demanding sex out of greater desire. As the sisters earn more money than expected, their service becomes more and more popular.
In this British drama, Ellen (Sorcha Brooks) and Jack (Antony Edridge) recall a time when they traded partners, and their remarks set a partner-swapping party in motion among four other couples. As the long night's journey into sex progresses, various fears and anxieties surface. Shown at Montreal's 1997 World Film Festival and the 1997 San Sebastian Film Festival.
Bored with his sex life, a man tries to convince his wife to swap partners.
Seon-woo and Eun-gyeol, two old friends who grew up together since their snoring days, live together with their wives even after marriage. As time goes by, the two begin to lose interest in their relationships with their wives, Ga-hee and Jeong-eun, and decide to try swapping. After swapping, Seon-woo and Eun-gyeol's friendship begins to crack, and they start to covet each other's wives at will. In the end, Ga-hee and Jeong-eun leave their husbands.
High school classmates So-ra and Ha-neul go to a pension with their boyfriends Sang-woo and Si-hoo. On the first night at the pension, So-ra's drunk boyfriend Sang-woo enters the wrong room and ends up having sex with Ha-neul. Meanwhile, So-ra, who fell asleep first, wakes up, looks for Sang-woo, and hears the sound of the two having sex. Losing her temper in her revenge, So-ra seduces Ha-neul's boyfriend Si-hoo, who is also drunk and asleep in living room, and has sex with him as well.
Jung Min and Hee Young, an affectionate couple. On the other hand, Hee-young’s friend Yuri is struggling with her boyfriend Jin-ho, who only plays games every day. In the end, Yuri is bored and asks her friend Hee-young to come to play. However, Hee-young shows interest in Jin-ho, and Yuri goes out with Jung-min and spends a quiet time…
Two bored couples think they can find happiness if they exchange spouses for the evening.