

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.
Practical Effects
Shot in real off-limits catacomb sections—no set could replicate this.
Direction
Dowdle turns tight spaces into psychological pressure cookers.
Writing
Alchemy lore and hell mythology woven tighter than expected.

Director
John Erick Dowdle
Trivia, insights & behind the scenes
The crew had to obtain special permits to film in the 200-mile illegal catacomb network; some actors genuinely panicked when lights failed.
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Reactions from the web
They literally showed every single death in this trailer lol
@Lets.Go.Brandon 558
Thank God I didn't see this trailer before watching the movie!! I mean this literally would have spoilt the whole movie! Anyways this movie is amazing, creative, damn scary, damn creepy, wtf moments, and yes is well directed!! Hats off... A decent horror movie after ages!!
@adityakar6801 392
Jonah would never do something like this yet he might because of his curiosity.
@suprasannabaruah1881 31
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