The dark secret of the notorious Paris catacombs is unravelled in the trailer for As Above, So Below, Digital Spy said.

Ben Feldman and Perdita Weeks portray explorers leading an expedition to a secret locked chamber below the streets of Paris.

The duo manage to find their way into the world's oldest mass grave, but are at the mercy of supernatural creatures.

As Above, So Below has been produced by Legendary Pictures, with John Erick Dowdle aboard as a filmmaker.

Dowdle has previously directed the horror hits Quarantine and Devil.

As Above, So Below is now playing in the U.S. and the UK.