Tae-il is a low-level thug who goes around the streets of his neighborhood in Gunsan, collecting debts for a loan shark and harassing shop owners for the protection money owed to the small gang he works for. He is 42 years old, lives with his barber brother Young-il and Young-il's family, and has never been in love. Tae-il does well at his job and doesn't seem to harbor many scruples about it, but then he meets Ho-jung, a bank clerk who is taking care of her debt-ridden, terminally ill father. During their first encounter, Tae-il forces her to sign a contract that requires her to sell her organs if she can't pay back her father's debt on time. After their not-so-pleasant first meeting, however, Tae-il finds himself thinking about Ho-jung constantly and his conscience begins to get the better of him. He writes a new contract and offers it to her: He will exempt her from the debt if she goes on date with him. The more dates she goes on, the less debt she will have to pay off. Ho-jung rejects his offer at first, ...