F tells the story of Robert Anderson, a burned-out alcoholic world-weary English teacher, a man who has to face his most terrifying demons. F is set in a huge sprawling U.K. comprehensive school, after lessons have finished for the day. What is a place of learning during the daytime, becomes a vast and deserted labyrinthine nightmare of endless corridors, empty classrooms, woodwork rooms, gyms, welding rooms, motor pool shops, canteens, photographic darkrooms, art studios and sports halls. The school comes under relentless attack from a group of blood thirsty hoodies, intent on only one thing, to spread terror. Anderson must battle these brutal killers, and his deepest fears, in a desperate battle for the survival of his pupils, fellow teachers and those he holds most dear.