Nicci has one last chance to make a difference before she dies. She's decided to leave letters, giving her most treasured possessions to her closest friends. To her single friend Mona she bequeaths her husband David. To childless Jo, Nicci leaves the care of her three-year-old twin daughters. To Lizzie she leaves her prized garden. But Nicci didn't always know best, and she couldn't have imagined the changes and challenges her letters set in motion for the loved ones she's left behind.