For fans of The Housemaid, The Perfect Marriage, and The Girl on the Train, a twisty, psychological thriller about an invasive new friendship, a marriage full of secrets, and characters that leave readers questioning who to believe at every turn.

Three people. One marriage. One murder.

YOU: My handsome husband Tom. You’ve given me everything – our beautiful son and our perfect new seaside home. I want to trust you, but I know you haven’t been honest about why you really wanted to move here. I haven’t been honest with you either…

ME: I make a secret promise as Tom kisses me and pours a glass of ice-cold wine to toast the first night in our dream house: I’m going to forget about his past. For the sake of our son, I’ll keep this family together, no matter what.

HER: Chloe is the only friend I’ve made since the move. I love our long lunches, even though she asks prying questions about my marriage. Tom hates me spending time with her, but I ignore his warning to stay away. I’ve seen the way he looks at her. It’s better to keep your enemies close …

You may think you know what’s going on in my marriage, but you’ll be wrong. Only three things are true: Someone is a liar. Someone is in danger. Someone is a killer.