On a rainy night, deep in the Ardennes, Martin Martin must bury his father. Little does he know that the discovery of a handwritten notebook will lead him on a dizzying quest through history and continents. Fifteen years later, in the heart of the Algerian desert, a mother and her daughter mysteriously disappear.
They have been led by the story of an unknown man, in search of a heap of books stamped with a strange chalice, and of a colossal treasure, accumulated through the ages by a legendary secret society.
Where does history end and fiction begin? A unique exploration of the way humanity is reliant on stories.