Captain Makarov (Priluchny) asks Zhenya (Moryak) to help investigate a murder that occurred thirty years ago .

This refers to the Russian mystical detective series (Russian: Сны ), starring Pavel Priluchny and Liza Moryak . Overview of Episode 4

The show is a limited series consisting of 8 episodes in its first season.

The fourth episode of the 2022 series centers on a "cold case" and a historical connection through the protagonist's supernatural abilities.

You can typically find it on Russian streaming platforms like Premier or Okko. Сны (сериал) - Википедия

It is revealed that Marta ran an anatomical theater and was a prolific serial killer whose crimes remained unsolved for over a century.

The story follows Zhenya, who gained the ability to see how people died after a tragic accident. She uses this "curse" to help the police solve complex crimes.