: Irina discovers that Bobrov's girlfriend was involved, noting her nail polish matches a fragment found at the crime scene.
: The "cipher girls" successfully solve the case despite heavy pressure from their supervisor, Marina Korzun. : Irina discovers that Bobrov's girlfriend was involved,
: The episode features Anna's wedding day with Letnev, providing a emotional closure to her character arc. Context of Season 4 Context of Season 4 The final episode concludes
The final episode concludes the investigation into the murder of Polina Nikitina: Key Episode Information Episode Number : Season 4,
: Anna realizes that Bobrov wrote an anonymous note to Nikitina's father and planted a poem in the coffin.
The 16th episode of the 4th season of the Russian detective series (The Cipher) officially premiered on online platforms on August 3, 2024 , and aired on television on October 31, 2024 . There was no such episode on December 8, 2022, as the fourth season had not yet been released at that time. Key Episode Information Episode Number : Season 4, Episode 16 (Series Finale) Streaming Release : August 3, 2024, on Wink and Kinopoisk TV Premiere : October 31, 2024, on Channel One Duration : Approximately 60 minutes Plot Summary (Episode 16)