Living in bustling New York City, Lily Quinn has plenty of distractions and is struggling to finish college as well as pay her rent. But that all pales in comparison when Amy, her best friend and roommate, disappears without a trace. Spencer O’Malley, a cynical NYPD detective assigned to Amy’s case, immediately captures Lily’s attention. Though he is wary and wrestling with his own demons, he, too, is irresistibly drawn to Lily. But fate has more in store for Lily than she ever expected. As she looks deeper into the mystery surrounding Amy’s disappearance, Lily finds answers she never imagined she’d find—answers that challenge everything she knows about her own life. Lily’s search puts her on a collision course with tragedy and love, and gives her a glimpse into the abyss that swallowed her friend . . . until she faces a final confrontation with her own life-changing destiny.