Lexington "Lex" Walters and Amanda Cauble are back in this fourth installment of the popular series. Amanda's father has moved home to Somerville to begin a new life, which gives her the opportunity to strengthen her relationship with him. Lex learns more about her mother's family but also contends with her deep feelings of abandonment and mistrust when her own father returns. As they reconnect with their fathers, both women struggle with overwhelming emotions and questions that have long gone unanswered. At the same time, unprovoked attacks increase in severity until both women fear for their very lives as someone tries to tear apart the love they share. Can they unravel the mysteries in time to save themselves and their love?