The Da Vinci Code

A man revealed to be Jacques Saunière is pursued by a mysterious hooded character known as Silas through the Grand Gallery in the Louvre. Silas demands the location of the Priory's clef de voûte or "keystone." Under threat of death, Saunière finally confesses the keystone is kept in the sacristy of Church of Saint-Sulpice, "beneath the Rose." Silas thanks him, and then shoots him in the stomach.
Meanwhile, American symbologist Robert Langdon (Tom Hanks), who is in Paris as an AUP guest lecturer on Symbols and the sacred feminine, is contacted by the French police, and summoned to the Louvre to view the crime scene. He discovers the dying Saunière had created an intricate display using black light ink and his own body and blood. Captain Bezu Fache (Jean Reno) asks him for his interpretation of the puzzling scene.
Silas calls a mysterious man known as The Teacher, revealing that he has killed all four protectors of the keystone and that all confirmed the same location. He dons a metal cilice on his thigh and proceeds to flagellate himself with a whip for the sins of murder. Facilitated by Bishop Manuel Aringarosa, Silas then travels to Saint-Sulpice and is admitted by an elderly nun; left alone, he excavates beneath the floor of the church to find a stone saying only JOB 38:11. He confronts the nun, who quotes the passage: "Hitherto shalt thou come, but no further." Realizing that he has been deceived, Silas is enraged and kills the nun.
Sophie Neveu (Audrey Tautou), a cryptologist with the French police, enters the Louvre as well and slips Langdon a message which leads him to go to the men's room. There, Sophie meets him and tells him that he is being tracked, a GPS tracking dot has been (unknown by him) slipped into his jacket and that he is a primary suspect in the murder case because of a line of text found by the corpse (P.S. find Robert Langdon). Sophie however, believes that Saunière, who is revealed to be her grandfather, wanted to pass a hidden message on to her, and that he had wanted to bring Langdon into the equation so that he could help her crack the code.
Having bought some time by removing the tracking device, the pair begin exploring the Louvre, finding more anagram messages that Saunière had left behind. Many of these relate to Leonardo Da Vinci's art, and the pair find a key with a Fleur-de-lis behind Madonna of the Rocks.