Two years ago, Gray James jilted Carolyn Mathers at the altar, disappearing without a trace. Carolyn's fruitless search for answers cost her her badge; now she's a P.I. and trying hard to get on with her life. A chance encounter reveals that Gray is still alive, a changed man with dangerous secrets he refuses to share. The harder he pushes her away, the more determined Carolyn is to find out what happened to him. Gray never stopped loving Carolyn, but the fateful night of his bachelor party changed his life forever. He would do anything to shield her from the world he now inhabits, a world where Killers hunt the night and Guardians hunt the Killers - and he tries to walk a third path, refusing to become one or the other. But when a serial killer called the Broad Street Banger seems to be targeting Caroline, Gray risks everything to keep her safe - even as the Guardians consider him the prime suspect. Caught in an escalating game of cat and mouse, Gray and Carolyn must forget the passion they once knew if they ever hope to evade the Guardians and find the real killer.