At a time when society conforms to the strictest rules and most proper etiquette, sixteen-year-old Camille Kennecott and her guardian, Dr. Bennett, live a most unconventional life. They hunt werewolves.

When unwitting victim, Nathaniel Strider, wanders into one of their full moon pursuits, Camille and Dr. Bennett believe they have found a specimen for their study. Finding a scientific key to unlocking the mystery of lycanthropy would end their late night excursions. Yet beneath the irresistible exterior, Nathaniel is transforming into a flesh-tearing monster, and as each experiment fails, Camille loses another inch of her soul to him. In a month's time, she must face the prospect of destroying the boy who has stolen her heart.