Secrecy of the Investigation
Action & Adventure
Mystery
Drama
Crime
September 1, 2000 – December 10, 2025
(began 26 years ago)
45m / episode
7.8/10
Returning Series
25 Seasons
430 Episodes
In the center of the plot is a senior investigator named Masha Shvetsova and her male colleagues. The plot is the most vital, but, like in “Streets of Broken Lanterns,” it is seasoned with a fair amount of humor - otherwise, how can the audience (and the heroes) endure countless morgues, identifications and other “cute” charms of the investigative routine?
Season 1
16 episodes
September 1, 2000
Season 2
12 episodes
March 5, 2003
Season 3
12 episodes
March 1, 2004
Season 4
12 episodes
March 14, 2005
Season 5
12 episodes
April 24, 2006
Season 6
12 episodes
December 20, 2006
Season 7
12 episodes
March 26, 2008
Season 8
12 episodes
April 16, 2009
Season 9
24 episodes
October 24, 2011
Season 10
24 episodes
November 9, 2011
Season 11
12 episodes
May 2, 2012
Season 12
12 episodes
February 4, 2013
Season 13
20 episodes
December 16, 2013
Season 14
16 episodes
December 15, 2014
Season 15
16 episodes
December 14, 2015
Season 16
20 episodes
December 5, 2016
Season 17
24 episodes
December 11, 2017
Season 18
24 episodes
December 17, 2018
Season 19
24 episodes
December 9, 2019
Season 20
24 episodes
December 14, 2020
Season 21
24 episodes
December 13, 2021
Season 22
16 episodes
December 5, 2022
Season 23
16 episodes
December 7, 2023
Season 24
16 episodes
December 9, 2024
Season 25
16 episodes
November 5, 2025
Cast (210)
Producers
Original Name
Тайны следствия
Original Language
ru
Spoken Languages
Russian
Production Countries
RU
Production Companies
Panorama Studio, Progress Plus Studio, Ingriya Film, Solnechnyy Dom Studio, Lenfilm