Yong-hu, a world champion martial artist who doesn’t believe in God, suddenly develops stigmata on his palms. Visiting a church in hopes of healing these wounds, he ends up saving Father Ahn, who falls into danger while performing an exorcism. As time passes Yong-hu accepts his new calling and begins saving people who are possessed by demons, but then he must prepare for a final confrontation with a dark priest who ensnares people with the power of the devil.