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. It appears that once you invite Polly into your home, it's very difficult to get her out again.

Greece, 1980. Emma takes part in a shattering, violent event. An event to which she is anything but an innocent bystander. She is only 18, but this marks her fall from innocence. It will haunt her for the rest of her life. London, now. Kate has the perfect existence: a glossy image, a glamorous home, a perfect family. But there are cracks. All is not what it seems. And now the two worlds are about to collide. Somebody's out for revenge. Someone who has been waiting 30 years.