Mal-soon is a tough granny in a shanty town in Busan. In front of her, 12-year-old Gong-ju appears with her baby sister Jin-ju on her back. Gong-ju claims that she is the daughter of Mal-soon’s runaway daughter. Mal-soon’s peaceful life becomes a mess with these little strangers, but Mal-soon doesn’t feel bad living with them.
Byung-gu, a once-famous former professional boxer, makes ends meet doing odd jobs at the gym. While eager to start boxing again, he gets diagnosed with "punch drunk syndrome," a condition caused by cerebral concussions. One day, a new member of the gym arrives and volunteers to help Byung-gu.
Six high school students, who have finished their college entrance examinations, accidentally discover a haunted house with eerie rumors to it. Inside there, the students start to hear the whispers of death and vanish one by one, as unstoppable, extreme terror engulfs them.
