Рёрёс„сђ 4 Сѓрµр·рѕрѕ 7 Сѓрµсђрёсџ 2022 -

Just as Petr Natanovich joins the investigation, Volynin's body disappears from the morgue. While this causes panic for Korzun, Katerina views it as proof that the death was a calculated murder rather than an accident.

This season focuses on how the women adapt following the departure of Lieutenant Colonel Proskuira (played by the late Sergei Puskepalis). Just as Petr Natanovich joins the investigation, Volynin's

She faces domestic pressure from Georgy’s mother, who is actively trying to force her to leave their shared apartment and divorce her husband. She faces domestic pressure from Georgy’s mother, who

The season follows the series' established structure, where every four episodes typically cover one major criminal case. Шифр (телесериал) - Википедия Character Arcs in Season 4 She struggles with

The tension peaks when Shefner catches Sonya searching through his personal belongings. Character Arcs in Season 4

She struggles with a secret pregnancy by Letnev, which she hides from her peers.

While the third season aired in late 2022, the 16-episode fourth season premiered on streaming platforms like Wink and Kinopoisk in March 2024 and on Channel One in October 2024.