
Kyeong-cheol ends up in prison due to a momentary mistake, and his friend Cheol-min takes his fiancée Kyeong-mi away and marries her. Five years later, upon his release, Kyeong-cheol has nowhere to go. He ends up staying at Cheol-min’s house and now lives under the same roof as Kyeong-mi, who is no longer his lover but his friend’s woman. The former couple secretly reunites behind Cheol-min’s back and has a sexual affair. However, having been away from society for so long, Kyeong-cheol begins to develop an interest in another woman, Hye-won.
In this strange situation, where will their lives ultimately lead?
