 While inspecting the sewage system of London, two workers are attacked by a weird creature. Later, Kate (Franka Potente), decides to leave a party trying to meet the actor George Clooney that is in London. She waits for the last subway train, but after drinking many alcoholic beverages, she takes a nap on the platform bench losing the train and being trapped in the closed subway station. Later, a train going to the yard passes she gets and she meets her acquaintance Guy (Jeremy Sheffield), who tries to rape her in the wagon. Guy is hardly attacked by the creature, and Kate escapes through the tunnel. This is the beginning of her claustrophobic, scary and gore night running through the underground of London.