Louis XV is dead. Mr de Sartine is appointed at the Ministry of the Navy and Nicolas Le Floch relieved of his duties. As some look to take advantage of the new sovereign's inexperience at the court, a murder is committed in a Minister's house and Nicolas Le Floch called...
Les temps sont durs pour Nicolas Le Floch, qui doit enquêter sur un crime commis à l'hôtel de Saint-Florentin, propriété du ministre du nouveau roi.