In 1984, a Russian research team goes below the surface to find out what secret the world's deepest borehole is hiding. On their expedition, something unexpectedly gruesome awaits the researchers.
Key credits listed on this page include Arseny Syukhin, Sergey Torchilin, Victor Bondaryuk, Milena Radulović, Sergey Ivanuk, Nicholay Kovbas, Nikita Dyuvbanov, and Vadim Demchog.