Synopsis
Sang-hyun is a priest who volunteers his time conducting his ministry to patients in a small town hospital. Although well respected for his strong faith and dedicated service to those around him, he suffers from overwhelming feelings of doubt and despair about living in a world that seems to be drowning in suffering and death. With the hope of saving even one life, he volunteers to participate in an experiment to find a vaccine for the deadly F.I.V. virus and heads to Africa. But the experiment fails, and Sang-hyun is infected with the fatal disease. Surprisingly, however, he recovers completely. News of his miraculous recovery spreads quickly, and devoted parishioners, thinking that he has the gift of healing, flock to his services. Among the visitors are Kangwoo, Sang-hyun’s childhood friend, and his family. Later, Kang-woo invites Sang-hyun to join the weekly mahjong night at his house, and there Sanghyun finds himself dangerously drawn to Kang-woo’s wife, Tae-ju.

Suddenly, Sang-hyun relapses. He coughs up blood and dies, only to open his eyes the next day in dire need of shelter from the scorching sunlight: Sanghyun has become a vampire. Initially he feels a new vitality and is excited by his urgent bodily desires, but soon he is disgusted to find himself sucking blood from a comatose patient. After a sinful suicide attempt, he finds himself drawn almost against his will to human blood, and the symptoms of F.I.V come roaring back. Desperately trying to avoid committing murder, he resorts to stealing blood transfusion packs from the hospital.

Living with her sick husband and his over-protective mother, Tae-ju leads a dreary, unhappy life. She is drawn to Sang-hyun and his strange new physicality, and he is unable to resist his desire. So they begin an affair. But when Tae-ju discovers the truth about his new life, she retreats in fear, only at first. When Sang-hyun asks her to run away with him, she turns him down, suggesting that they kill Kang-woo instead.