In a valley village in Hwanghae-do province, there is a legend about an old wolf that has lived there for a thousand years and takes the form of a woman to make trouble. Ok-hwa is the only daughter of Kim Jwa-su. She loses her parents to the plotting of Wol-sun, her stepmother. Unjustly accused of being a 'mad wolf,' Ok-hwa is sentenced to death. The ghost of Ok-hwa's mother, Kang, tries to save her poor daughter. The ghost of Kang punishes the evil Wol-sun and her lover, Choi Si-baek for their sins. However, Buddhist monk Mu-ryang teaches her that the life and death of humans as well as emotions like joy, anger, sorrow, and pleasure are transient. He takes Ok-hwa's hand and they leave. Sixty years later, a descendent of Si-baek is at a small Buddhist temple in Mt. Gu-wol when he sees Si-baek and Wol-sun's….