The story of Julie D'Aubigny is well known. Her tumultuous childhood, her powerful lovers, her celebrated voice. Connected to most of the nobility of 17th century Paris, feted for her performance, unwilling to live by the rules of her society, she took female lovers, fought duels with noblemen and fled from city to country and back again. But now the real truth can be told. She also made a deal with the devil. He gave her no powers or help, but he kept her alive for only one reason. To take revenge...