<P> Before I Go to Sleep is a 2014 mystery psychological thriller film written and directed by Rowan Joffé and based on the 2011 novel Before I Go to Sleep by S.J. Watson . An international co-production between the United Kingdom, the United States, France, and Sweden, the film stars Nicole Kidman, Mark Strong, Colin Firth, and Anne - Marie Duff . </P> <P> Forty - year - old Christine Lucas wakes up in bed with a man she does not know, in an unfamiliar house . The man explains that he is her husband, Ben, and that she suffered brain damage from a car accident ten years earlier . Christine wakes up every morning with no memory of her life from her early twenties onwards . </P> <P> Christine receives treatment from Dr. Nasch, a neuropsychologist at a local hospital who gives her a camera to record her thoughts and progress each day, and calls her every morning to remind her to watch the video in the camera . Dr. Nasch instructs Christine to keep the camera hidden from Ben and reveals that her memory loss occurred after she was attacked and left for dead near an airport hotel . They surmise that Ben tells Christine it was a car accident to avoid upsetting her . </P> <P> Over the course of treatment, Christine faintly remembers a red - haired woman named Claire . Ben tells her that Claire was a friend who couldn't handle Christine's condition and ended contact with her . Later, Christine recalls that she had a son . She angrily confronts Ben over hiding their child, but he says their son died of meningitis when he was eight . Christine remembers the name Mike and believes it may be the name of her attacker, which she relates to Dr. Nasch . He hugs her to comfort her and almost kisses her, but she pulls back and then sees her doctor's name tag and his first name is Mike . She runs from him but he catches her and administers a sedative, leaving her at home . He tells her later that she was upset and he's sorry but he doesn't feel he can treat her anymore, because he has feelings for her and her memories are causing her to project what happened onto him . </P>

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