It starts as a game at a book group one night. Never have I ever – done something I shouldn’t! But Amy Whey has done something she shouldn’t. And Roux, the glamorous newcomer to Amy’s suburban neighbourhood, knows exactly what that is. Roux promises she will go away. She will take herself and her son, who is already growing dangerously close to Amy’s teenage stepdaughter, and she will go. If Amy plays by her rules. But Amy isn’t prepared to lose everything she’s built. She’s going to fight back, and in this escalating game of cat and mouse, there can be only one winner.