When a young woman is ritualistically murdered in her Saint Louis apartment with the primary clue being a pentacle scrawled in her own blood, police are quick to dismiss it as a cult killing. Not one for taking things at face value, city homicide detective Ben Storm calls on his long time friend, Rowan Gant- a practicing Witch- for help. In helping his friend, Rowan discovers that the victim is one of his former pupils. Even worse, the clues that he helps to uncover show that this murder is only a prelude to even more ritualistic bloodletting for dark purposes. As the body count starts to rise, Rowan is suddenly thrust into an investigation where not only must he help stop a sadistic serial killer, but also must fight the prejudices and suspicions of those his is working with-- including his best friend.