The garish neon lights of New York City's Times Square can be very seductive. And so can the promises of dark pleasures on the seedier side streets. To Davey Owen, the lure of a glowing sign advertising "Live Girls" was too hard to resist. He was looking for a little entertainment. He found instead a nightmare in the form of a beautiful but strangely pale woman. A woman who offers him passion, ecstasy— and eternal life-but takes in exchange his lifeblood and his very