Prosecutor Min Tae-Yeon (Yeon Jeong-Hun) is bitten by somebody he doesn't and becomes a vampire. Tae-Yeon rejects the life of a vampire and he survives by drinking the blood of dead people and still lives as a righteous prosecutor.
Tae-Yeon also uses his new found abilities as a vampire to prosecute powerful persons normally thought above the law. A mysterious case then occurs and the evidence points to a vampire as the perpetrator. Tae-Yeon now knows that he is not the only vampire. He also ponders why he became a vampire and what truths may lie behind their motives.
