Six young criminals break into hidden catacombs and attempt to steal jewels, but some inhabitants are guarding the precious belongings. After being trapped in this dark maze of crypts, the group tries to escape alive.

Andrey is the head of a group of Moscovites who live in the city's underground. Owen leads a rescue team in search of a Russian anthropologist who's disappeared beneath the underground system. They discover an eerie multilevel system of caves and catacombs.

Miles of twisting catacombs lie beneath the streets of Paris, the eternal home to countless souls. When a team of explorers ventures into the uncharted maze of bones, they uncover the dark secret that lies within this city of the dead. A journey into madness and terror, As Above, So Below reaches deep into the human psyche to reveal the personal demons that come back to haunt us all.