Jeong-im's husband comes out of the closet and the two divorce. One day, she sleeps with a young man, Byeong-seok. To her surprise, he is her daughter's boyfriend. Meanwhile, Seung-rok moves into the same apartment where his fist love, Jeong-im, lives. Seung-rok enjoys a date with her, but soon Jeong-im learns that he is Byeong-seok's father. Four people experience conflict in entangled relationships. However, they ask themselves what it means to be a `true family.'
