In the Louvre, late at night, the curator Jacques Sauniere is murdered, his body disfigured by strange signs. The police believe that the person killed himself soothed himself. His murderer, Sayles, is calling a certain Teacher and reporting that four people who had informed him before his death with the same information were removed. A kind of brotherhood has created a cornerstone on which signs are encrypted, where the secret of this brotherhood is kept. All four of the dead showed that the map is in the Saint-Sulpice church in Paris. Teacher urgently needs to get this card.
The police are asking for help from Robert Langdon, professor of religious symbols at Harvard University. Never before known Langdon, Sauniere appointed a professor who had arrived in Paris the day before.
Langdon is brought to the Louvre to the crime scene. According to the police, Sauniere was in his office when he was attacked. He ran into the gallery and turned on the alarm, tearing off the wall picture. The entrance to the gallery was blocked by a lowered grille, and the assassin shot through the curator through it. Saunière crawled a long distance and died. The police found him naked, lying on his back with arms and legs spread out. In the center of the stomach was drawn a five-pointed star – a pentacle. In the darkness, next to the corpse, purple letters and numbers were visible. The murderer disappeared without a trace.
The sister of Saint-Sulpice church Sandrine meets the representative of Opus Dei who arrived in Paris.
Trying to decipher what was written, Langdon comes to the conclusion that Sauniere in his pose copied Leonardo da Vinci’s famous painting “The Vitruvian Man.”
The lead investigator, Captain Bezu Fache, transmits the pictures with signs to the cryptography department, and the cryptographer Sophie Neve from the judicial police arrives at the crime scene. She informs Langdon that he is in danger.
Aringarosa meets with Sayles, whom he once saved his life, and with the Teacher.
Sophie tells Fasha that the set of numbers is the Fibonacci sequence. Having improved the moment, she meets alone with Langdon and tells him that he is the first suspect in the murder, so a special tracking beacon was put in his pocket. In addition to the secret signs written near the body, there was an inscription that Fash erased: Sauniere asked to find Langdon. The inscription was not meant for the police, but for her, since she is the granddaughter of Sauniere.
Sophie remained an orphan at four. Her parents, grandmother and younger brother were killed in a car accident, and the grandfather raised a girl. Ten years ago, when she returned home without warning, she found her grandfather in a company of strange people who worshiped an object and performed strange rituals. Sophie broke off relations with him. Since then, they have not seen, although the grandfather asked her to meet.
With the help of Sophie Langdon manages to escape from the Louvre. Carefully re-reading the entry, Langdon comes to the conclusion that this is an anagram of the words “Leonardo da Vinci Mona Lisa”, and the Fibonacci sequence is a cipher.
Sophie is left alone in the Louvre. She wants to find “Mona Lisa” and find out what grandfather left her for the mysterious message.
Sayles comes to the church of St. Sulpice. He asks his sister Sandrine to leave him alone to pray. Hiding herself, Sister Sandrine watches him.
Sophie comes to the crime scene. Langdon does not run away, but returns to her. After thinking, he came to the conclusion that the inscription near the deceased had been encoded the symbol of the secret society that Sophie had once seen with her grandfather. After examining the glass in the picture “Mona Lisa”, they see the inscription blood – one of the fundamental principles of brotherhood.
Sophie examines another picture of Leonardo da Vinci’s “Madonna in the grotto.” There she finds an unusual shape of the key that she once saw in her childhood as a grandfather, and who must open a casket with many secrets. On the key they see the address.
Langdon is arrested by the security agent of the Louvre, but Sophie saves him.
Sayles, thinking that he is alone in the church, takes out a Bible from the cache to find out where the cornerstone is. Sister Sandrine calls the connected members of the brotherhood and finds out that they are all killed.
Sophie and Langdon run away from the police. Langdon talks about the “Priory of Zion” brotherhood, whose seal is marked with a key. The Templars handed over to the brotherhood the important secret documents brought from Jerusalem to Europe, in which we are talking about the Grail.
Finding nothing, Sayles kills Sandrine’s sister.
Aringarosa receives a large sum from the Vatican.
The Swiss bank is located at the address indicated on the key. Sophie and Langdon find a safe, but do not know the account number. The president of the bank branch, André, knows that they are suspected of murder, their pictures have already been distributed by Interpol. Sophie tells him what happened. The police who followed them arrive at the bank. Berne agrees to help escape, he does not need problems in the bank, and Sauniere was his friend. Langdon remembers the inscription near the body of the deceased – this is the account number.
In the safe there is a casket with the symbol of Priory of Zion on the lid. Taking the box with him, Berne takes the fugitives from the bank undetected.
Sylez repents to the Teacher that he did not complete the task, but he calms him: he knows whom Sauniere passed on the information.
Inside the box is a cryptex, a cylinder with discs. The cryptex was invented by Leonardo da Vinci, but Sauniere loved to cut such pieces out of wood. After thinking and hearing from Sophie about the ritual she saw as a child, Langdon concludes that Sauniere was one of the highest members of society with whom the secret is entrusted, and the cryptex indicates where the Grail is located. There must be three more people dedicated to the mystery, apparently Sauniere felt some danger if he wanted to entrust the secret to his granddaughter and him.
Hearing on the radio that Sophie and Langdon are accused of killing three more people, Berne demands that they give back what Sauniere entrusted him to guard. Sophie and Langdon run away, leaving Berne alone in the forest. Langdon guesses that a traitor has infiltrated the brotherhood. He decides to turn to the distinguished scientist Lew Teabing, who studies the Grail. Teabing will be interested in critex and will not give them to the police.
After listening to Sophie with Langdon, Teabing shows them a picture of Leonardo da Vinci’s Last Supper. Each of the thirteen party members has its own cup, but the Bible and other legends believe that the Grail appeared right there. Teabing believes that the Grail is not an object, but a man, and a woman, since the symbol of the female principle is a vessel. This woman is depicted in the picture, and she is Mary Magdalene.
According to various documents and ancient scrolls of the Dead Sea, there were romantic relations between Jesus and Mary Magdalene, they were spouses. The blood in the Grail is the child of Jesus, worn by Mary Magdalene. The Church concealed this fact and declared Mary Magdalene to be a harlot, which did not correspond to reality.
To save the child, Maria fled to France and gave birth to a girl there Sarah. Documents about the life of Jesus, Mary and Sarah were hidden and found by the Knights Templar. The search for the Grail is the search for the grave of Mary Magdalene.
The genus of Jesus developed, united with the kind of French kings and founded Paris.
The servant of Tibing Remi tells the owner that Langdon and Sophie are being sought by the police. So Tibing did not surrender them to the authorities, Langdon shows him the cryptex. Siles sees it sneaking up under his window. In the meantime, police are approaching the house of Tibing.
After thinking, Teabing, Sophie and Langdon come to the conclusion that Sauniere gave the secret of Sophie’s brotherhood, since the others who knew her were killed. The assassin must be sent by the Church.
Teabing studies cryptex, and Langdon examines the box in another room. In it, he finds a piece of wood with an inscription in an unknown language, but then Siles strikes him on the back of his head. Threatening Sophie and Tibing with a gun, Sayles demands to give him a cryptex. Teabing knocks at his gun.
The police break into Teabing’s house, but Teabing, Remy, Sophie and Landox take Syales out of time. Langdon does not understand how Syles could find them.
Teabing offers to fly to England on their plane. After thinking over the cryptex, the fugitives decide that it is necessary to find the tomb of the Knights Templar, and the encrypted word is Sofia. In the cryptex lies another cryptex along with a note in which it is reported that it is necessary to find in London the grave of a knight buried by the Pope and take a ball there.
Hearing the news, Aringarosa understands, in what he has involved Siles, and decides to fly to London.
Deceiving the English police, Tibing, together with Langdon, Sophie, Remi and Siles go to the knight’s grave in the church, where the Templars are buried. While Teabing with Sophie and Langdon are in the church, Remy, who works for Teacher and expects to receive a large sum, frees Sayles. Silesa bursts into the church with a gun, demanding to give him the cornerstone. Langdon threatens to break the cryptex. Then Remy puts the gun to Teabing’s temple, and Langdon gives the cryptex. Remi leads Teabing away and lets Sophie out with Langdon.
In the Tibing house, the police search. It turns out that his servant Remy was once implicated in petty thefts. Also, the police discovers a system of listening to people.
Sophie informs the police about the abduction of Tibing. With her talks from France, Captain Fache. He apologizes for the charges and wants to meet the fugitives.
Sayles is called by the Teacher and asks Remy to bring him a stone to the Opus Dei residence.
At the research center of the Royal Library, Sophie and Langdon meet librarian Pamela Gottem.
Leaving Rémy with the bound Tibing in the car, Sayles comes to the residence. A Teacher comes to the car, which no one has seen before. He kills Remy, taking the criticals.
Pamela studies the documents and comes to the conclusion that the knight is Isaac Newton, the Great Master of Priory of Zion, who was cursed by the Church. Newton is buried in Westminster Abbey by the philosopher Alexander Pop, whose name and the word “Papa” are written in the same way.
At the Opus Dei residence, Sayles is arrested. During the detention, he exerts resistance and accidentally injures Bishop Arangaros.
On the grave of Newton come Sophie and Langdon, worrying for Tibing. The hidden Teacher sees them. Sophie and Langdon see the inscription on the tombstone, which tells where Teabing is.
In this place, they find a Teiling aiming at them from the pistol. This is the Teacher who organized the murder of Sauniere, the family of Sophie and other people, so that no one would know the secret of the Grail. Teabing dramatized the conversation with Remy and Sayles, deceiving them. Now he wants to take possession of the secret cryptex.
Sailes drags the wounded bishop to be helped. A few months ago, Aringarosa was offered to “Opus Dei” come out of the Vatican. When the bishop refused, he was called by a certain Teacher and offered to help in the search for a sacred relic. The bishop regrets that he ordered Siles to obey Teacher.
Trying to outwit each other, Tibing and Langdon unravel what the ball on the grave means-an apple. But then the police arrest Teabing.
Sayles dies of the injury.
Langdon and Sophie come to Scotland, to the church pointed to by the last entry in the cryptex. There they meet a woman who has exactly the same box. The woman turns out to be Sophie’s grandmother, who has lived under a different name for many years. With his grandmother, Sophie’s younger brother lives. Grandmother and brother did not go then in the car and after the incident had to hide.
Sophie bought a family, and Langdon must leave. They agree to meet soon in Florence.