Superdeep

In the depths of the Russian wilderness, a mysterious research facility has been hiding a terrifying secret. When a team of scientists and soldiers are sent to investigate strange occurrences at the facility, they uncover a threat that could change the course of human history forever. As they delve deeper into the heart of the facility, they must fight to survive against a horrifying force that defies explanation. But the closer they get to the truth, the more they realize that the greatest danger may not be lurking in the depths of the facility, but in the hearts of those who seek to uncover its secrets.

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Some movies that have similar genres and were produced around the same time as Superdeep include Companion, The Endless, The Long Walk, Redux Redux, Synchronic, No One Will Save You.