On their way home from a camping trip, a group of friends become stuck in an eerie forest when their car breaks down. There, they meet a mysterious stranger who warns of monsters lurking in the forest - will they make it out alive? Based on the popular computer game of the same name.

High school student Shun Takahata is bored. Bored with the day-to-day monotony of school and life, he prays for change, for something exciting. Suddenly, he and his classmates are forced to play deadly children's games and facing terrifying creatures from a talking Daruma doll to a sharp-clawed lucky cat.