The runaway UK debut bestseller, with over 220,000 copies sold in its first two weeks, about the perfect marriage that might be the most terrifying nightmare beneath the surface.Everyone knows a couple like Jack and Grace: he has looks and wealth, she has charm and elegance. You’d like to get to know Grace better. But it’s difficult, because you realize Jack and Grace are never apart. Some might call this true love.Picture this: a dinner party at their perfect home, the conversation and wine flowing. They appear to be in their element while entertaining. And Grace’s friends are eager to reciprocate with lunch the following week. Grace wants to go, but knows she never will. Her friends call – so why doesn’t Grace ever answer the phone? And how can she cook such elaborate meals but remain so slim?And why are there bars on one of the bedroom windows?The perfect marriage? Or the perfect lie?