This is the story of Lee Geum-ja, a beautiful and deadly young woman, half angel and half devil. While still in high school and faced with an unplanned pregnancy, Geum- ja found herself seeking refuge with the worst possible kind of man. And what he asked of her was more than she could have guessed. When it was all over, Geum-ja found herself sentenced to 13 years in prison for the murder of a little boy, her daughter taken far away from her to be adopted by strangers. Fresh out of prison and on a mission of vengeance, Geum-ja sets about putting her precise plan in motion. Everything is going perfectly, and Geum-ja's plan is ready to be sprung, when she finds her long-lost daughter. But is Geum-ja's quest leading toward redemption or damnation?