Soraya, a career diplomat at the Foreign Office, is sent on a routine mission to the East European city of Ragzburg, the birthplace of her great-great-grandmother. She hopes to gain information about the mysterious past of her ancestors, but instead she finds passion, and increasingly frightening riddles.
What is the source of the wild urges that overwhelm her at night? Is she bound by a centuries-old tradition of frenzied licentiousness? Will her lover, Anton, be her saviour - or her victim? And what price will she have to pay to lift the curse, the dark power of the full moon?