At the court of young King Louis XVI , conspiracies abound…Under the distrustful eye of his new boss at the Chatelet, Nicolas Le Floch investigates the bizarre death of a maid at the home of Monsieur de Saint-Florentin, the King's minister. When a second murder is washed up by the Seine with the same curious injuries, events begin to gather pace, leading Le Floch to Versailles, as he attempts to solve what is far more than a simple case of murder.