An Affair: A Dangerous Sexual Play(2014)

Original title: 정사: 위험한 성적유희

Ga-eul is six years into her marriage but her trouble with her husband brings her to depend on alcohol. Hee-mang is a writer who lives next door but can't stand the fighting going on at Ga-eul's house and makes his way over there one day. Ever since then, Ga-eul goes over to Hee-mang's house to have sex everytime she fights with her husband. Hee-mang is confused at her behavior and gradually falls for her. Then Ga-eul slowly resolves things with her husband but Hee-mang asks to talk with the three of them...