Lim Jung-hwan is the successor at Korea's largest taxi business, and is enjoying the extravagant nightlife and luxury shopping that comes with his future fortune. Yet, Jung-hwan's ostentatious lifestyle faces a crisis as his mother tells him to drive a taxi so that he can return the money he has squandered and has been stealing from the company s safety box. One day he picks up a customer, Eun-ji, but she dashes off to a hospital before paying her fare. Jung-hwan finds her and seizes a piece o jewelry, a ring, as collateral. However, he loses the ring, giving Eun-ji every excuse to bother him. In doing so, she unwittingly awakens the long-suppressed Casanova living in Jung-hwan.