Before I Wake tells the story of Cody(Jacob Tremblay). Cody has been moving from place to place because, different foster parents have been adopting him from time to time. Now, he is in the care of, Jessie(Kate Bosworth) & Mark(Thomas Jane). Jessie & Mark soon realize, that Cody's dreams physically appear before them, as he sleeps. The deadly fact is, the same thing happens during his nightmares.