Gabriel Spencer is a Detroit beat cop determined to make detective by any means possible, and putting an end to a mysterious string of murders looks like the quickest way to accomplish that goal. Prostitutes and escorts, drained of blood, bodies abandoned in ditches, playgrounds, and Dumpsters… It all reeks of a similar spate of killings from decades past, and no one but Gabriel seems to see the connection. Modern crimes, however, can sometimes have ancient origins, and unfortunately for Gabriel, he fails to account for the real culprit— or the thought that perhaps he isn't the only one on the hunt for a killer.