The victim carries no identification and Bruno's inquiries at local hotels yield no trace of a missing foreign woman. The chateau of Commarque, begun in the 11th century, was entrusted to the Knights Templar. It is one of the few Templar sites in France that has never been associated with the fabled hidden treasure. Until now, when a journalist publishes a sensational story around the unknown woman's death and a centuries-old mystery looks like it might finally be solved.