From #1 New York Times bestselling author Jacquelyn Mitchard comes a page-turning family drama that explores the emotional consequences of loyalty, deception and jealousy. Stunned by her recently widowed father's reckless behavior, a young woman must learn to navigate a new world–where the people she should trust the most have become strangers she cannot trust at all.

Frankie Attleboro returns home to Cape Cod with thrilling news. She's met the love of her life, they're getting married and have a baby on the way. Her talented, charismatic father overshadows her with his own announcement: he's also getting married. To Frankie's best friend, Ariel, who is also pregnant, and due soon. In an instant, he upends Frankie's life. Her father's choices will have profound implications for her, for her family and for her unborn child.

Before Frankie and Ariel can adjust to this new reality, Ariel's estranged mother, Carlotta, returns after a decade-long absence. Carlotta's presence is unsettling–where has she been all these years? Why did she come back now? Ariel is welcoming but Frankie is suspicious. She digs into Carlotta's past, where she finds multiple identities, unexplained illnesses and a mysterious case of arson that was never solved. As Carlotta's sinister behavior intensifies, Frankie realizes she must untangle the threads of Carlotta's past to protect Ariel's future–and her own.