One rainy day after school, a group of friends stayed behind to get ready for the upcoming school festival. While idly swapping ghost stories, a massive earthquake shook the entire building, causing it to collapse around them. When they regained consciousness, they found themselves stuck in a parallel version of their school - one that had been abandoned and left in disarray since 1927. Now, they must discover a way out of this terrifying reality, or face the same fate as the many corpses that littered the premises.