An Affair (1998)
Original title: 정사
An Affair is a 1998 Korean-language drama movie directed by E J-yong, with a running time of 1h 48m. It stars Lee Mi-sook, Lee Jung-jae and Min Kim.
Seo-hyun is an ordinary housewife in her late thirties with a ten-year-old son and a successful architect husband. For her, life is a series of banal routines. Her sheltered life is suddenly threatened with the appearance of Woo-in, her much younger sister's attractive new fiancé.