Fifteen-year-old Emma Hawkins seemed like a pretty typical teenager until recently. She was restless, tired of the demands of her overprotective parents, sick of having to watch her younger brother all the time, hoping to get away somehow and have a life of her own. Suddenly, Emma's life changes in an unexpected way. She starts having frightening fits. Although her parents attribute her behaviour to psychological problems, Emma senses that something much darker is hiding inside her, waiting for it's time to break into the world. Desperate for answers, her parents have tried every medical test they can, but no real answers have surfaced.