<p>When a young woman is found brutally murdered and signs point to the possible involvement of a modern-day hobo community, Railway Police Special Agent Sydney Rose Parnell is brought in by the Denver Major Crimes unit to help investigate.</p><p>The prime suspect is the victim’s fiancé, a hideously scarred Iraq War vet known as the Burned Man. But Parnell can’t shake the feeling that larger forces are behind this apparent crime of passion.</p><p>In the depths of an icy winter, Parnell and her K9 partner, Clyde—both haunted by their time in war—descend into the underground world of a savage gang of rail riders. There, they uncover a wide-reaching conspiracy and a series of shocking crimes—crimes that threaten everything Parnell holds dear.</p><p>As the search for the truth puts her directly in the path of the killer, Parnell struggles with a deadly question: Can she fight monsters without becoming one herself?</p>