"A very mysterious death takes place in the Louvre. A curator apparently is murdered, but in the few minutes available to him before he actually succumbs to his death, he manages to make certain arrangements which provide clues as to his murderer(s) - by positioning himself a certain way and scribbling puzzling words. A renowned academic is summoned to the Louvre to make sense of the crime scene, but soon finds himself framed for the murder. Joined by a French government employee who is revaled to have a relationship to the victim, he starts a suspenseful flight from the authorities, moving from various locations of France to England and beyond. All the time he tries to make sense of a puzzle, which is something of universal significance to religion and humanity in general."