watchonline

In Bangkok, the medical student Mai (Natthamonkarn Srinikornchot) 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 (Komgrich Yuttiyong) advises her to follow another career, but her Professor Prakit (Nirut Sirichanya) 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.

Jae-hyuk (Kim Myung-min) is a former professor with a doctorate in biochemistry who is currently working as a pharmaceutical sales representative after losing his life savings and his job due to a bad investment he made in the stock market from advice he received from his younger brother. When a series of dead bodies are found floating in the Han River, the public is shocked to discover that the deaths are related to a fatal outbreak of virus-infected mutant parasitic horsehair worms, called Yeongasi, that can control the human brain. Those infected show symptoms of increased hunger without appropriate weight gain and excessive thirst when the worms are mature and ready to reproduce. Hence, they jump into the river to allow the worms to come out of the body. While the authorities work to find a cure, Jae-hyuk and his brother Jae-pil (Kim Dong-wan), a detective agonized with guilt for squandering Jae-hyuk's money in the stock market, struggle to save Jae-hyuk's family when they also exhibit similar symptoms. 

Na Rim (Lee Young Yoo), who came from a wealthy household, lost her family in a car accident when she was nine. After the accident, she suffered from amnesia so her uncle hired Oh Dal Gun (Kim Myung Min), an ex-ganster,to recreate a similar household with parents, sister, brother, grandparents and uncle in hopes that she would regain her memory. In a hurry, Oh Dal Gun ended up hiring all sorts of odd ball characters to act as members of Na Rim's family. None got along at the start and hilarious situation arose when all members tried to cope in front of the little girl and also to protect her from the one who caused her family's accident. Eventually they started to behave like a real family and cared for each other, proving that blood relation is not as important as a caring heart.