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.