Watch Swapping: My Friend’s Wife (2016) Korean Adult Movie.
Seong-sik stays at home while his workaholic wife Hye-joo works. His friend Joon-seok and his wife move in next to them. Seong-sik learns how to do housework from his friend’s wife Eun-yeong. At first they hit it off but that soon turns into an affair and when Joon-seok and Hye-joo find out, they also start cheating on their spouses.