Min-ho and his wife end up working for their friends Jeong-il, a photographer, and Jeong-il's wife, a nude paint artist. Min-ho poses nude for Jeong-il's wife while his wife initially works as an assistant for Jeong-il but eventually becomes one of his sexy photo shoot models. As time passes, each of them gets attracted to each other's partner and each working duo begins an affair. In the end, Jeong-il suggests to Min-ho, "Let's not take sides and just be happy as the four of us!" And they agree to swap partners with consent.