An Affair: My Wife's Friend (2018)
Original title: 정사: 아내의 친구
An Affair: My Wife's Friend is a 2018 Korean-language romance movie directed by Jo Tae-ho, with a running time of 1h 11m. It stars Kim Hee-jeong, Yoon Da-hyeon and Moon Sung-sik.
The wife's friend fills in for the wife on lonely nights! Hyun-joo quits her job and gets kicked out of the house she can't pay for. In the end, she stays at Hye-jin's while she looks for a job.