Picture Perfect by Jodi Picoult
A woman wakes to find herself in a graveyard, hurt and bleeding, her memory wiped clean. She doesn't know what she's doing there - or even who she is. She is rescued by a police officer, himself a newcomer to Los Angeles. After days of waiting, she is taken by complete surprise when she is finally identified by Alex Rivers, Hollywood's biggest movie star - and her husband. Cassie is dazzled and bewildered by the fairytale in which she suddenly finds herself. But everything is not quite right, and there is something dark and disturbing behind this glamorous facade. It is only as her memory gradually returns that her picture perfect life comes crumbling down, and Cassie is faced with choices she never dreamed she would have to make.