This pain prompts him to leave the classroom and head to an abandoned building. As they enter the building, the door entrance behind them mysteriously shuts, trapping them. Students are forced to hide and remain silent as a sinister figure roams the building, hunting them down with a chilling detachment. The tension builds as they hope to survive the next three hours. This sets the stage for a gripping and suspenseful tale of survival against an unknown and terrifying threat.....