Disillusioned with the future, a young couple attempts suicide, but only the girl, Joy, dies. Her boyfriend is saved by a blood transfusion from the only three people who have his rare blood type. Angered by the broken promise, J's spirit soon begins to haunt the three donors. A superstitious cop and a sorcerer from the famous Mao school of exorcists are their only hope in putting J\'s vengeful demon to rest.