Stop peeking and let's have a fling. Min-ho works at a private detective agency where peeking into others' lives is what he does. One day, a pretty woman named Mi-na asks him to tail her husband ...

A man stays with his father's friend Min-cheol in Seoul as he attends law school. The man has an interest in Min-cheol's young wife, Soo-kyeong, and in her best friend, Yoo-ra.