A deep truth under the Paris

The center of Paris hides a lot of secrets under its ground. Beneath telecom tunnels, sewers and metro there is a 300-km long chain of catacombs. It is illegal and dangerous to wander around stone labyrinth, full of human bones that were exhumed since XVIII century from overflown cemeteries. In this unfriendly environment Parisians have parties, make art and find the real freedom.