: This identifies the specific release group/site that encoded or distributed the file.

: This means the file contains multiple audio tracks, typically the original Russian and an English dub.

: This specifies the high-definition resolution and source (Blu-ray disc).

For official viewing, you can often find on streaming platforms like Shudder or available for rent/purchase on Amazon Prime Video. 2020 Movie List - IMDb

: The film is often described as an ambitious Russian horror movie that draws inspiration from classics like The Thing . While it has been praised for its atmosphere, some critics found the plot muddled and the pacing slow.

: This is a common acronym/shorthand used by torrent and pirating groups like SkymoviesHD for "Super Deep" .