Baek-ho lives in his brother's house and he's a jobless man with his mind in the gutter. He steals his in-law's panties for his own pleasure. One day he is caught.

Joon-goo is an innocent man in his 30s. He quit his job and runs a small BBQ place with his young and sexy wife, Mi-ri. Then one day, Mi-ri's sister, Na-ri, comes to their house. Na-ri is in her mid-20s. Joon-goo feels attracted to Na-ri who is calm and considerate, unlike minx Mi-ri. The two end up crossing the line after a small happening...

Seong-hee and Hyeon-hee are sisters. However, these sisters have many secrets. One secret is that the older sister, Hyeon-hee, is having an inappropriate affair with her sister's husband. Seong-hee knows about her sister and her husband, and is having an affair with her sister's boyfriend. Another secret of theirs surfaces...