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.