Buppah Rahtree is a loner female student at a Bangkok university who becomes the object of a wager by a group of male students to see if she can be bedded. Ake, the son of a wealthy family, takes the bet and courts young Buppah. She resists him at first, but one day sees him feeding pigeons in a park and talks to him. After she expresses her desire to fly away, they go on a ride in Ake's convertible. They continue to have a relationship, which culminates in a three-day weekend at Bang Saen, during which Ake has sex with her; he stays in bed with her the whole time. Ake shows videotapes of their sex to his friends, and for his efforts wins a bottle of Johnnie Walker, which he reflects to himself seems like a trivial prize for messing up another person's life. Ake breaks off all contact with Buppah. After her stepfather gives her a car ride, he takes her to a short-time hotel and sexually assaults her. She stabs him with a fountain pen he gaver her as a present and runs home to her apartment. Depressed, she contemplates suicide but is interrupted by a phone call from Ake, who wants to meet her. Ake tells her about the wager and apologizes. Though he plans to leave Thailand to study in England, he hopes to maintain their friendship. Buppah informs Ake she is two months' pregnant. Ake's mother tells him to convince Buppah to have an abortion. After the operation, he drives her back to her apartment, and it is obvious she is in pain. Ake leaves to get rice congee but does not return. After unsuccessfully attempting to collect rent, Buppah's landlady breaks into the apartment, where she discovers Buppah's corpse; Buppah bled to death due to complications from the abortion. When the authorities arrive, Buppah revives, and her vengeful spirit refuses to be dislodged. Mrs. See calls upon Maew, a false shaman who hustles locals, to exorcise the spirit. When he fails, Maew convinces his teacher, Master Tong, to try. For his effort, Master Tong is left with a knife in his back. A pair of Roman Catholic priests perform an exorcism, only to end up curse at and vomited upon by the ghost. As Buppah haunts the building, residents leave in droves, ruining Mrs. See's finances. In England, Ake grows homesick and has turned to drug use. He returns to Thailand and offers to bring Buppah rice congee. Ake catches the eye of Muay, a young woman at the congee stand. Muay seduces Ake and has him take her to an old cinema, where they have sex. When Ake returns to Buppah's apartmen