To catch a serial killer...Jack Shane will need all of his wits...and one silver bullet.Jack Shane should be dead. Five years after losing his family, his job, and nearly his life hunting the elusive and "Pentagram Killer, and " a copycat strikes. The Chicago Police Department enlists the retired detective's help, but Jack quickly discovers this killer may not be human. Crippled by PTSD and racing against a contract assassin, can Jack stop the werewolf hunting the streets of Chicago?