Friend Couples: Swapping (2017)

2017

Seon-joo and Jae-yong and Tae-gyun and Ga-hee are two married couples from the same university. They go on a trip together and get drunk and talk about the good times they had and the times they had sex with each other’s husband or wife. At first, they felt jealous over this but from some point on, they dream of something exciting once again.

Swapping: Two Women (2020)

2020

His wife has been acting strange. Oftentimes, she would go wherever, won’t receive his calls, and won’t reply when asked. The husband, Dong-seok, who suspects his wife’s strange behavior, finds a business card in her car and visits it. He meets Hani there, the woman she saw in a video, and while he was immersed in her story, he experienced something strange.