A remake of Korean director Park Chan-Wook's Sympathy for Lady Vengeance. The story is of a young lady who at the age of 19, goes to prison for the murder and abduction of a child on behalf of her accomplice Mr. Baek, only to find out that she is betrayed. While in prison, she carefully prepares for her revenge by winning the hearts of her fellow inmates with her kindness. Upon her release from prison after 13 years, she finally sets out to seek revenge on Baek, with the help of her former prison mates.