Chul-soo is a man with an intellectual disability. One day, Chul-soo finds out that a young girl, Saet-byul, who is in hospital is his daughter. And soon, Saet-byul sneaks out…

When a woman dies after a mistake by personalities in the afterlife, she needs to exist as a different woman for a while.

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…

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.