Entering the afterlife due to a hit and run accident, a successful author learns she can observe the earthly lives of her nearly grown children and is also permitted three "nudges" to alter the outcome of events.

After her daughter, Chess, breaks off an engagement and her fiancé subsequently dies in a rock-climbing accident, divorcée Birdie Cousins encourages her younger daughter, Tate, and her sister, India, to join her and Chess on Tuckernuck Island for a month, a time when deep secrets are soon revealed.

Gathering on Nantucket for a wedding planned to the letter by the bride's late mother, the Carmichaels and the Grahams hide their scandal-ridden, crumbling lives from the blissfully unaware, happy couple.

"Christina Antonioni is preparing for the holidays at her Nantucket toy shop, unpacking last-minute shipments and decorating for her loyal Christmas shoppers. But when her Scrooge of a landlord, Oscar Bittlesman, raises her rent, it seems nearly impossible for Christina to continue business on the wharf. Even so, Christina hopes there is a warm heart underneath Oscar's steely exterior. When she bonds with Wink, his sweet, young granddaughter who frequents...