After losing his job, his car and his money, Phuchit, races against time to complete 13 tasks ordered by an anonymous caller who promised 100 million Baht upon completion.
At a Thai hospital, a doctor and his seven nubile nurses engage in the sale of dead bodies. Jealousy causes one of the nurses to threaten to blow the whistle on the practice, so the others murder her. Soon the spirit of the slain nurse seeks revenge. In flashbacks we see the events leading up to the murder, and realize the full range of relationships between the main characters.
A group of friends sets off for a weekend getaway on Friday the 13th to challenge a supernatural belief only to realise that some things are not to be messed with.
