The film is based on real events when, in the 1970s, the deepest well in the world with a depth of more than 12 thousand meters was drilled in Murmansk Region for research purposes. During drilling, seismic sensors began to pick up strange sounds, an explosion occurred that led to mystical events.
Because it is populated by TOP 10 ranking since 2020, it is still a work in progress. Multiple links in the same country lead to different streaming versions.