On her first trip to Paris, a young woman hits a party in the Catacombs, the 200-mile labyrinth of limestone tunnels under the city that s lined with the remains of 7 million people. Separated from her friends, she becomes convinced that someone or something is chasing her.

Mummy-experts try to rescue world s greatest accumulation of mummies, endangered by humidity and showing signs of caducity, including the best preserved corpse worldwide: The little girl Rosalia Lomardo. Experts move to rescue the world s greatest accumulation of mummies, endangered by humidity and showing signs of decay, including the world s best preserved corpse: a two-year old girl from 1920.