: The car's owner, actor Karpilovsky, is cleared as he was out of town. His wife and mother-in-law do not drive, leaving a mystery as to who broke into his garage.
: Police locate the car used to hit Nikitina. : The car's owner, actor Karpilovsky, is cleared
: Katerina discovers a broken female fingernail with bright polish on the back seat, leading to suspicions that a woman was behind the wheel. : Katerina discovers a broken female fingernail with
: 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 His character, Proskurin, remains "behind the scenes" to
: 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
This episode is the penultimate chapter of the series, focusing on the murder investigation of :