"When Detective Jake Cashen’s new partner is found brutally slain, Jake must choose between justice and revenge in the hunt for a cold-blooded killer. As she draws her last breath, Detective Mary Rathburn leaves a cryptic message to Jake written in her own blood. It’s a clue to her killer’s identity she knew only he would understand. It sets him on a dangerous path that could change him forever. Jake faces mounting pressure to solve this case...