Evan St. John, a young fashion photographer running from the pain caused by the death of his younger sister, is thrilled when he is offered a job with House of Nadasdy, a leading fashion house in Paris. What he doesn't know is that Elizabeth Nadasdy, the elegant and powerful owner, is a centuries-old vampire with a penchant for collecting beautiful people. To Evan's horror, he is turned into one of her and "children. and " Unable to bear what he has become, Evan flees to New York and to his best friend, police officer Will Trask. For years, Evan has nursed an unrequited love for Will, but he also knows Will is the one person who might be able to help him. As Evan and Will try to deal with Evan's condition, they are drawn into the world of the theriomorphs: shape-shifters who are guardians of life and the sworn enemies of vampires. Caught in an ancient war between two powerful supernatural forces, Evan and Will find they must choose sides - because if they are to have any chance of a future together, they must destroy Elizabeth Nadasdy before she destroys them.