Khrustalnaya lovushka/Crystal Trap - Season 1 (2020)

And it seems that before his death, the man was looking for some kind of cave. Olga is a translator from Spanish, and a friend of the disappeared man gives her his diary to read

under a crust of ice Olga sees the faces of people - The terrible collection testifies to a maniac hunting down skiers.

But are crimes and disappearances related? Or someone else, no less sophisticated than a maniac sculptor, opened the hunt for Olga?