Something has happened to Alison Taylor. Her Saturday night started normally. Recently separated from her husband, Ali has been persuaded by her friends to go on a date with a new man. She is ready, she is nervous, she is excited. She is about to take a step into her new future. By Sunday morning, Ali's life is unrecognisable. She wakes, and she knows that something is wrong. She is home, she is alone, but she has no memory of what happened to her. Worse still, when she looks in the mirror, Ali doesn't recognise the face staring back at her. She can't recognise her friends and family. And she can't recognise the person who is trying to destroy her.