Rose has it all—the gorgeous children, the husband, the beautiful home. But then her best friend Polly comes to stay. Very soon, Rose's cosy world starts to fall apart at the seams. Her baby falls dangerously ill, her husband is distracted—is Polly behind it all? It appears that once you invite Polly into your home, it's very difficult to get her out again...Cuckoo is a dark, juicy, deliciously unsettling, read-it-in-one-sitting psychological drama.