Рёрёс„сђ 4 Сѓрµр·рѕрѕ 15 Сѓрµсђрёсџ (2022) -

: The season was filmed without the lead actor following his tragic death in 2022. His character, Proskurin, remains "behind the scenes" to maintain the story's continuity.

: Filming took place in Moscow, St. Petersburg, and Kislovodsk. Episode Schedule (Season 4) Шифр (телесериал) - Википедия : The season was filmed without the lead

This episode is the penultimate chapter of the series, focusing on the murder investigation of : : The season was filmed without the lead

: Anna is pregnant by Letnev but keeps it a secret, while Katerina faces ongoing pressure from Georgy’s mother to divorce and move out. Key Production Facts : The season was filmed without the lead