An actor who performs for a children's theater lands a leading role in a new production.

The director from the” old guard " comes to the film studio to discuss the shooting of his film. A whole squad of new tolerant producers, imposed by the censored film critics, is waiting for him in the office. Their main task is to turn the film about ordinary guys and traditional values conceived by Kostya upside down. The comments mainly relate to racial and gender issues, according to the agenda... Kostya is shocked: does talent and human qualities now mean nothing for the selection of actors and the film crew? The producers continue to press Kostya, then he loses his temper in the literal and figurative sense of the word…

Valentin, a student at the Institute of Cinematography of St. Petersburg, will have to make a documentary film about Baikal as a diploma work. His friends remind him of Stepan, a former classmate from Ulan-Ude. He decides to turn to him for help. In Ulan-Ude, together with their friends, the guys get into various funny situations. For three days, they rest on Lake Baikal in the Chivyrkuisky Bay, help Valentin in the filming of a documentary and talk about all the beauties of the "sacred sea".

The film is based on the second book from the Adventures of Erast Petrovich Fandorin series of novels written by the Russian author Boris Akunin. The film takes place in 1877 during the Russian-Turkish war. Erast Fandorin has just escaped from Turkish prison and is trying to get on the Russian side as soon as possible to give important information about the upcoming attack of the enemy. On his way he meets Varvara Suvorova, a young lady who is going to see her fiancée - a soldier of the Russian army. Erast also knows that there is a spy somewhere in the Russian army, everyone is under suspicion.

In Soviet-occupied Estonia, a boy is caught between a broken family, the suffocating grip of state power, and forces far older than the empire itself. As propaganda and betrayal close in, he discovers that the greatest danger emerges where political oppression and ancient myth converge - and that his own bloodline may hold the key to both survival and ruin.