The Cavern on AllMovie

Eight spelunkers exploring an uncharted cave system in Central Asia are thrust into a terrifying fight for their lives when their guides are killed and an unknown presence stalks them from the shadows in director Olatunde Osunsanmi's subterranean shocker. The group leaders have fallen prey to an unseen predator with a deadly bloodlust and a seemingly supernatural gift for navigating the labyrinthine cave system. Upon discovering that the only known exit has been mysteriously sealed since their entry, the remaining survivors must travel ever deeper into the pitch-black maze in hopes of discovering an alternate means of escape. As the body count continues to rise and the memories of daylight fade to a forgotten dream, the determined explorers charge head on into the into a world where humankind has lost its position at the top of the food chain.