Hari and Duri are a sister and brother living in the Shinbi apartment complex, which is more than a hundred years old. Living with them is a 102-year-old goblin named Shinbi. One day, they find a secret cave hidden in the woods. Swept up by the power of the cave, they’re taken 22 years into the past, to 1996.

10 years later — Shinbi's Haunted House returns! Hari is now a college student, and Shinbi has become a global superstar! By chance, Shinbi reveals himself to the world… and becomes incredibly famous. With Shinbi's appearance, Dokkaebi who had long been hiding across the globe begin to emerge one by one. They gather in Seoul to throw a World Dokkaebi Festival. But just as the celebration reaches its peak... He, who had been asleep for ages, finally awakens! In an instant, the festival turns into a living nightmare...