Harry, who experiences a sudden deafening of all sound while walking at night, encounters a mysterious creature that disappears as soon as he sees it. Harry is plagued by nightmares and wakes up to find himself paralyzed in his own room, as the creature appears once again. He wakes up in a forest clearing and meets a man who warns him not to make any noise, as they are being hunted by creatures that are not human. The man takes Harry to a walled-off community where they are safe from the creatures