Doku Mushi

A diverse group of individuals awakens inside an abandoned school with sealed access. Among them are two college students, a cabaret performer, an occult-interested office worker, a punk factory employee, an unemployed man with inappropriate interests, and a young girl. The building offers running water but no food, with a seven-day countdown displayed. They discover a cleaver and a hot pot in a classroom, leading them to suspect they are expected to kill and consume each other. While they could theoretically survive the seven days without food, the situation proves more complicated than it seems.