Mona's mother died, seemingly from spontaneous human combustion. She became acquainted with a nurse named Ploy, whose mother also died from the same cause. The two women embark on a quest to find out the truths about their mothers' death with the aid of an ambitious news reporter.
In Bangkok, the medical student Mai has her first contact with cadavers in the anatomy class; however, after touching the dead body, she is haunted by the ghost of a woman. The dean Professor Winai advises her to follow another career, but her Professor Prakit offers to help Mai to supersede her fears and beliefs. When Mai sees the picture of Ning Priatyda, the girlfriend of her former boyfriend Tos, she recognizes the ghost and decides to investigate Ning, discovering that the young woman is missing. Later she finds that her tenant Noi has seen the ghost of Ning many times at her house. When the security guard Swai calls Mai, she discovers a dark secret about the fate of Tos and Ning.
In the 1960s, there were few places on Earth as quiet and peaceful as Thailand's Chumporn province, This tranquility is shattered the day an unknown dead man's body is found along the banks of the river waterway. Soon after, villagers began to mysteriously disappear for no reason.