Still shaken from accidentally shooting an innocent girl in the grasp of a crazed killer, Detective Lucas Peyroux’s first case back is a young Jane Doe washed up on the banks of the Mississippi. When the dead woman's sister disappears and local criminals start turning up dead, Peyroux realizes he has a vigilante on his hands, who might just be leading him to something a lot bigger than just another homicide. Can Peyroux track her down before she kills an innocent or ends up like her sister?