This is another example of a Stephen King novel that has not translated well into film. It's the usual 'bogey man' from nowhere who gets inside you head and dreams, sent to create mayhem and destruction against the human race, who are being turned into crazed killers by a mysterious signal from their mobile phones! One man (Cusack) in search of his son, thinks he can save humanity! The story line seems random and the ending has to be one of the worst I've ever seen.