As Above, So Below

Scarlett Marlowe, a young alchemy scholar, continues her dead father's work searching for the philosopher's stone, a legendary alchemical substance capable of turning base metals into gold or silver and grant eternal life, discovered by Nicolas Flamel. She finds the "Rose Key" in a cave in Iran, where she sees a hanged man before which she narrowly escapes as it collapses. She travels to Paris, where she enlists the help of George, her former lover. Along with Benji the cameraman, they translate Flamel's headstone, which contains a riddle that leads them 370 feet underneath the streets of Paris. She enlists the help of a guide called Papillon, his girlfriend Souxie, and friend Zed to search the Catacombs of Paris at a party. A woman is staring at Benji during the party. George refuses to go but is driven into the caves with the group when a policeman spots them and tackles Papillon. After crawling through a narrow tunnel which collapses, they encounter female cultists who are singing and appear possessed, including the same woman from the party who stares at Benji again. They find themselves in a blocked tunnel that Papillion is reluctant to breach, as the only people who have gone through, including Pap's friend La Taupe (The Mole), have never been seen again. The group attempts to take a different path, where Benji gets stuck briefly. Somehow, they loop back around to where they were before, and they are forced to go through the tunnel.