While in Paris on business, Harvard symbologist Robert Langdon receives an urgent late-night phone call: the elderly curator of the Louvre has been murdered inside the museum. Near the body, police have found a baffling cipher. While working to solve the enigmatic riddle, Langdon is stunned to discover it leads to a trail of clues hidden in the works of Da Vinci -- clues visible for all to see -- yet ingeniously disguised by the painter.

An elderly curator of the Louvre has been found dead inside the museum, surrounded by a cipher that leads Harvard symbologist Robert Langdon and French cryptologist Sophie Neveu to clues hidden in the works of Da Vinci. They discover that the late curator was the involved in the Priory of Sion, a secret society whose members included Leonardo da Vinci, Victor Hugo, and Sir Isaac Newton