Рёрёс„сђ 4 Сѓрµр·рѕрѕ 15 Сѓрµсђрёсџ (2022) May 2026

: 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 actor following his tragic death in 2022. His character, Proskurin, remains "behind the scenes" to maintain the story's continuity.

: Katerina discovers a broken female fingernail with bright polish on the back seat, leading to suspicions that a woman was behind the wheel. : Anna is pregnant by Letnev but keeps

: Anna and Sonya discover Polina had secret ties to the "stilyagi" (Soviet youth subculture) and had recently changed her lifestyle.

Episode 15 of the fourth season of (Шифр) was officially released in 2024 , continuing the popular retro-detective series about former intelligence officers. While the third season aired in 2022, the fourth season premiered online in March 2024 and later on Channel One in October 2024. Plot Summary: Episode 15 (2024) : Katerina discovers a broken female fingernail with

: Season 4 is the concluding chapter of the original project.

: Police locate the car used to hit Nikitina. While the third season aired in 2022, the

: Filming took place in Moscow, St. Petersburg, and Kislovodsk. Episode Schedule (Season 4) Шифр (телесериал) - Википедия