The Ominous Guest

A ghost horror story set in modern times. Young-joon, a college student, has a younger sister named So-young. But after So-young returns from an MT (Membership Training trip), she contracts a strange illness, and the symptoms of the illness, and the things that happen around her are so bizarre that they cannot be explained scientifically, so the hospital cannot come up with any proper measures. Young-joon struggles to save his sister, who is dying day by day, when one day, an elder in the family visits and introduces him to a distant relative named 'Do-yeon.' The elder tells Young-joon, who doesn't believe in ghosts, that Do-yeon is a kind of shaman, and that he has personally witnes...