Young man inherits small fortune from his old uncle, on condition he lives in the old man's house for a time. Soon the uncle's spirit begins to manifest itself through the nephew's personality, requiring the presence of an exorcist.
A young boy Hee-Joon is possessed by an evil spirit. Nun Yunia tries to save him, assisted by Nun Mikaela. Priest Paul attempts medical treatment, while Priest Andrew performs an exorcism to rid Hee-Joon of the spirit.