Like a princess in a fairytale, Grace Hamilton has been showered with blessings: professional success, a happy marriage, and she even lives in a beautiful castle. But the only thing she really wants — her heart's desire — is the one thing she can never have. Her sister, the beautiful Susannah, has made a mess of her life. Like a reverse Midas, everything she touches turns to shit. But the Fate puts Grace's future in Susannah's hands, changing the balance of power between the sisters forever.

Clare Elian has always known the risk of being married to a rich, handsome younger man like Marc. She just never thought she'd be the one to bring the danger home. But when she gives birth to two gorgeous babies — one of each, naturally — she discovers motherhood isn't quite the cinch she'd expected. Desperate to escape back to her chic chain of boutique flower shops, she hires Jenna, a confident, efficient nanny keen to escape a relationship that has gone horribly wrong. Before long, a deadly rivalry emerges for control of the nursery. And as events spiral out of their control, both women find themselves forced to make wrenching decisions about love, loyalty and motherhood.