Eternal Hunger. Number 1 in series

Alexander Roman wants nothing to do with the controlling rulers of his vampire breed, but as a new threat to the pureblood vampires emerges, Alexander's ties to the past are forced upon him, and without warning, he finds himself disoriented, terrified and near death at the door of a stranger. Dr Sara Donohue is dedicated to removing the traumatic memories of her patients - like those of the stranger at her front door.
But what he tells her of his past is too astonishing to be anything more than the delusion of a madman. Then, as their worlds collide, Sara and Alexander are bound as one becomes hunter and the other prey. And Sara's only chance of survival is to surrender to the final - and most unimaginable - desire of her life.