Life in the Sector is one of quiet routine, recycled air, and fluorescent lights. For Sep, it's a life of fading focus and strange dreams. But when a shocking act of violence in a crowded cafeteria is followed by the unnerving transformation of a quiet classmate, the sterile order of the Sector begins to fracture. Now, Sep and his friends find themselves hearing whispers in the static between the walls and seeing patterns where none should exist. They are about to learn that in a world built to keep the darkness out, the most terrifying threats are the ones already locked inside.