The dreamer

An 16-years old girl called Melanie got to the car crash, and loses her memory. She's not only an ordinary girl. She has a secret. She's able to control her dreams, but if she dies in the dream, she'll also die in reality. Because of the accident, she can't remember how to use that ability. Her ability also brings her problems. She's been watched for years by the creature called "Nightmare". He has noticed Melanie's memory loss, and that she can't control her dreams because of that. Nightmare sends serial killers after her to kill her, and get that ability for him self. Only one person is able to help her so long that she'll get her memory back...