While Kitty Milton and her husband, Ogden, summer on their island in Maine, anchored as they are to the way things have always been, the winds of change are beginning to stir. In 1959 New York City, two strangers enter the Miltons’ circle. One captures the attention of Kitty’s daughter, while the other makes each of them question what the family stands for. This new generation insists the times are changing. And in one night, everything does. So much so that in the present day, the third generation of Miltons doesn’t have enough money to keep the island in Maine. Evie Milton’s mother has just died, and as Evie digs into her mother’s and grandparents’ history, what she finds is a story as unsettling as it is inescapable, the story that threatens the foundation of the Milton family myth.