O simbologista e académico americano Robert Langdon viaja até Paris para lançar um novo livro, mas é subitamente chamado pela polícia francesa quando o conservador do Museu do Louvre é morto de uma forma macabra e as pistas apontam para ele. Compete agora a Langdon, com a ajuda de Sophie Neveu, criptógrafa e neta do conservador, fugir da polícia, resolver o crime e descobrir um segredo milenar que pode mudar a face do mundo.
The Freemasons claim to be a civic-minded fraternity bound together by harmless rituals, yet throughout their long history, they have been accused of plotting to take over the world, as well as being devil worshipers who stole King Solomon's treasure. This dramatic reenactment, interspersed with expert interviews, tells the Freemasons' central myth concerning Hiram Abiff, the mythical builder of Jerusalem's Temple of Solomon.
Features historians Stephen Bullock Dan Burstein, Brent Morris Akram Elias, and author David Shugarts. But will a rational view reveal the Freemasons as an important and honorable thread in the fabric of America?