Gia and Abby have been friends since childhood, bonded by the tragedy that unfolded when they were eighteen. Now thirty, heiress Gia is in Greece with her husband, entertaining glamorous guests with champagne under the Mediterranean sun, while Abby is working fourteen-hour days as an attorney. When Gia invites Abby on an all-expenses-paid trip to Sweden, Abby's thrilled to reconnect. But on the day of her flight, Abby receives an email that threatens to unearth the skeletons of her past, and when she arrives in Sweden, Gia isn't there. Worried, Abby flies to Greece, where she finds Gia's beachfront estate eerily deserted. Will Abby find her before it's too late?