Feeling overwhelmed, Cara Burrows just needs to get away from her husband and two children. Cara doesn't tell them where she's going, just that she would be home by October 24th. She ends up at a beautiful resort but has problems from day one. First, the resort gives her a room that already has people in it, a man and a teenage girl. Cara thinks the girl looks like Melody Chapa, a famous missing murder victim, whose parents are in jail for the crime, and her body was never found.

Cara becomes obsessed with this mystery, and if this girl is really Melody. She begins researching the backstory of the murder, and strange things begin happening at the resort. There is a spa on the resort where people go to relax and can leave messages that supposedly come true. One of the messages is that Cara will be safe, which is confusing to Cara because she feels fine. But then danger comes too close for comfort to Cara the more she discovers Melody's case, and she wonders if the message will really come true.

What a great thriller by Sophie Hannah.