A woman's birthday party takes a dark turn in a poignant, heart-stopping new novel from the reigning queen of suspense, NYT and USA Today bestselling author of Behind Closed Doors, The Breakdown, and Bring Me Back. For Livia's 40th birthday, her husband Adam throws the party of a lifetime to make up for the wedding they never had. Daughter Marnie, is studying abroad-- and Livia is secretly glad Marnie won't be there. Livia has recently uncovered a secret about their daughter which will shake the foundation of their family to its core. She plans to tell Adam, but after the party is over so they can have this last happy time together. Adam has his own surprise: he arranged for Marnie to fly back for the party. How far are Adam and Livia willing to go to protect the ones they love-- and to give each other a last few hours of happiness?