A Korean man in China takes an assassination job in South Korea to make money and find his missing wife. But when the job is botched, he is forced to go on the run from the police and the gangsters who paid him.

A disillusioned Seoul woman visits a remote island to reconnect with a childhood friend, only to find her trapped in an oppressive cycle of physical, mental, and sexual abuse. As tensions escalate, the situation spirals into a harrowing tale of survival and retribution.

Yu-jin and her blind mother move to a small village from Seoul. On her first day at the new school, Yu-jin gets picked on by her classmates. Along with other victims of hatred, Yu-jin puts a curse on the four girls tormenting them through a Ouija Board. On her second day at school, one of the spellbound bursts into flames and dies just as she sits down where Yu-jin used the board. Next day, another victim burns to death, and now the school is enclosed by horror.