The summer after she graduated, Gin Sullivan's sister, Lily, went missing. Her family fell apart, not to mention her relationship with her high school sweetheart, Jake. Now, almost twenty years later, Gin is living in Chicago and working as a medical examiner when she gets the call that Lily's body's been found. Confronting her past means confronting Jake, who was the prime suspect in Lily's disappearance. Then Gin uncovers a shocking truth that could change everything—if it doesn't kill her first...