An expedition ventures into a network of underground tunnels beneath Paris. As they explore the catacombs, the archaeologists experience a series of strange events and come under attack from a mysterious unknown force that seems to know their darkest secrets. Horror, starring Perdita Weeks and Ben Feldman.

When a team of explorers venture into the catacombs that lie beneath the streets of Paris, they uncover the dark secret that lies within this city of the dead.