Californian James Falcon's Romanian mother told himso many folk stories that by the time he reaches college in1943, he's an expert on the strigoi, the vampires who infested the most isolated forests of Wallachia. Mostly as a joke, he writes a term paper on the strigoi. But the joke turns serious when US counter-intelligence recuit him.

James hunts down strigoi Nazi assassins in war-ravaged Europe, although the principal one, the terrible Dorin Duca, contiues to elude him. In the Cold War, he must fight once more, as Duac goes on the rampage across London, England.

With Jill, a police dog handler of great beauty and resilience, James is assigned to Britain's M16 to go on the hunt again. But even after the threat is driven away, James will still uncover more secrets - secrets that come ever closer to home...