Reeve (Ekin Cheng) is a zombie hunter. Before each mission, he must drink a potion to become half-human and half-zombie to exert his power. His former partner Lila (Josie Ho) died in an operation and was replaced by Gypsy (Gillian Chung). Her arrival made Reeve's sister Helen (Charlene Choi) very dissatisfied, and the two women fought. Zombie Prince Kazaf (Edison Chen) and his servant Prada (Anthony Wong) live on the plasma sent by his father, the Zombie King. He is kind by nature and never hurts the innocent. Helen met the handsome Kazaf. One day Kazaf was chased and injured by the Zombie Count. After Helen learned of his identity, she resolutely helped him steal blood from the hospital and brought him home. It turns out that the zombie bible "Day for Night" is in Kazaf's hands. Reeve couldn't find the antidote after an operation, so he turned into a zombie and almost killed his sister. Gypsy had no choice but to kill his beloved Reeve. Helen also joined forces with Gypsy to attack in order to save Kazaf who fell into the hands of the zombie lord.