To Yoon-seo, an interviewer for the City Hall periodical, human warmth is like the humid and unpleasant midsummer heat. One day, she gets into a scuffle with a young deliveryman, Soo-chan. Afterwards, they meet again by chance at an interview...
In 1990, at a secluded community center, the custodian murders all the guest lodgers and kills himself. Ever since, on every Old Year's Night, paranormal events begin to take place within the building. Eventually, the center is shut down and left abandoned for years. A renowned paranormal investigator who had lost his mother during an exorcism and three college students who heard about the rumor of the unexplained phenomena heads over to the building, resolved to uncover the buried secret.
Connected by phone in the same home but 20 years apart, a serial killer puts another woman’s past — and life — on the line to change her own fate.