Sang-hyun, a priest working for a hospital, selflessly volunteers for a secret vaccine development project intended to eradicate a deadly virus. However, the virus eventually takes over the priest. He nearly dies, but makes a miraculous recovery by an accidental transfusion of vampire blood. He realizes his sole reason for living: the pleasures of the flesh.

Released from prison, Taesik goes to live with an adopted mother. He takes a job and tries to live a quiet life with his new family. His efforts are threatened when a politician seeks to knock the family restaurant down to build a mall.