Lt. Lou Hackett had collected a series of police reports and eyewitness accounts that, despite his skepticism, pointed to the existence of werewolves, or at least, persons masquerading as wolf-men.  Hackett had connected Jack Russell (the Werewolf) to a number of these accounts, and so observed Russell for many months.  By a stroke of fortune, Hackett came into the possession of a ring that allowed him to become a wolf-man at will.  In a confrontation with the Werewolf (Russell) and another werewolf, Raymond Coker, Coker hurled Hackett into a vat of molten metal, and by killing another werewolf, Coker's curse was lifted.  Investigating the disappearance of his partner, Lt. Victor Northrup took up Hackett's werewolf investigations.