After thirteen and half years in prison for kidnapping and murdering the boy Park Won Mo, Lee Geum Ja is released and tries to fix her life. She finds a job in a bakery; she orders the manufacturing of a special weapon; she reunites with her daughter, who was adopted by an Australian family; and she plots revenge against the real killer of Won Mo, the English teacher Mr. Baek. With the support of former inmates from prison, Geum Ja seeks an unattained redemption with her vengeance.