"Rex Mundi" is a mystery set in 1930's Europe where sorcerers stalk the streets and the Church has a grip on power.
Master Physician 'Julien Saunière' must uncover the two-thousand-year-old secret of the Holy Grail, as he and 'Genevieve' join forces with a reclusive hermit in a remote hamlet, once the capital of the 'Merovingian' kings, France's ancient rulers.