A group of adventurous urban explorers ventures into the mysterious Catacombs of Paris, searching for the legendary "Ellicott's Gold," a hidden treasure that has been lost for centuries. The intrepid archaeologist Scarlett, a woman determined to uncover the truth behind the legends, joins a diverse team that includes her friend George and a group of carefree locals. However, what began as an exciting adventure quickly turns into a terrifying nightmare.
As they delve deeper into the darkness of the catacombs, they realize that they are not only searching for treasure but are also unearthing secrets from the past that should never have seen the light of day. Shadows seem to come alive, and the fears and traumas of each individual begin to manifest in horrific ways. As claustrophobia and terror grow, the group is forced to confront not only the mysteries of the catacombs but also their own inner demons.
With time running against them and a growing sense of despair, the explorers must find a way out before they become part of the legend they have been seeking. The oppressive atmosphere and chilling revelations blend action and horror in a dark journey into the unknown, where madness and redemption intertwine at every corner.