Sex Exchange (2018)
Original title: 후배부부와 교환섹스
Sex Exchange is a 2018 Korean-language drama movie directed by Nam Hyun-soo, with a running time of 1h 9m. It stars Ha Jin, Lee Chae-dam and Do Mo-se.
When extreme cold freezes the pipes at a married couple's home, they go next door for a few days. While there, the couples become closer than they were before.