On the surface, Saya is a stunning 16-year-old, but that youthful exterior hides the tormented soul of a 400-year-old "halfling". Born to a human father and a vampire mother, she has for centuries been a loner obsessed with using her samurai skills to rid the world of vampires, all the while knowing that she herself can survive only on blood like those she hunts.

In a dark and decadent city, Sean Fallon - a corrupt cop - will have to face his own demons to put an end to a series of brutal rapes and murders of the most weirdest kind. With the help of the local pimps, headed by Chance, Fallon will go the hunt for the serial killer, that may in the end not be human!