In Hong Kong, the special force of the police known as 2002 is composed of the twenty-two year-old cop Chiu and his ghost partner and they fight against supernatural phenomena under the guidance of the mystic Paper Chan. When his partner reincarnates, the rookie policeman Fung applies for the position; but Paper Chan explains Chiu that the team is to be formed by a man and a spirit, and Chiu has a death star on his hand that dooms his friends to die. Meanwhile, Chiu falls in love for Nurse Danielle, but he avoids her to protect her life against the fate of the death star. When the fiend Water Ghost possesses Fung seeking revenge against Chiu, he has to battle against the evil spirit trying to protect also his friend.