The entirety of the film takes place within the course of one day in the summer of 1936 in the
Soviet Union. Mitya (Dmitri), a former
nobleman and veteran of the
anti-communist White Army, contemplates suicide. The film cuts to
Komdiv Sergei Petrovich Kotov, his wife Maroussia, and their young six-year-old daughter Nadia relaxing in a
banya (sauna) when a peasant from the local
collective farm frantically tells them the
Red Army's tanks are about to crush the
wheat harvest as part of general
maneuvers. After hearing this news, Kotov rides out to order the tank officer to halt. Kotov carries authority as a senior
Old Bolshevik and legendary hero of the
Russian Civil War, and he is also very popular with the common people and local villagers. The opening scene makes it clear that Kotov is a devoted family man, and he claims to be a personal friend of
Stalin. Following this incident, the happy family returns to their country
dacha (country estate), where they join Maroussia's relatives, a large and eccentric family of
Chekhovian aristocrats. Mitya (Dmitri), who had been Maroussia's fiancé before disappearing in 1927, arrives in a costume to disguise himself, but when he takes it off he is joyfully embraced by the family and introduced to Nadia as "Uncle Mitya". Maroussia is left feeling deeply conflicted, as she had suffered deeply when Mitya left without explanation and even contemplated suicide, as shown by the self-inflicted marks on her wrists. Despite his personable nature, it is clear that Mitya has returned with a secret agenda. It is slowly revealed throughout the duration of the afternoon that he works for the Soviet political police, the
NKVD, and has arrived to arrest Kotov for a non-existent conspiracy that Mitya had framed him for. Mitya is abusing his power for the purpose of revenge, since ten years ago Kotov had conscripted Mitya into the
OGPU, the predecessor of the NKVD, and was therefore the reason for Mitya being taken away. Mitya detests Kotov, whom he blames for causing him to lose Maroussia, his love for Russia, faith, and his profession as a
pianist. Kotov confronts Mitya about his activities in
Paris, where he gave up eight White Army generals to the NKVD. All were kidnapped, smuggled to the Soviet Union, and shot dead without trial. Although eventually realizing that Mitya intends to take him away, Kotov believes that his close relationship with Soviet dictator
Joseph Stalin will save him. However, a black car carrying NKVD agents arrives to remove Kotov, just as a group of
Young Pioneer children arrives at the dacha to pay tribute to him. Kotov willingly goes with Mitya, pretending to be Mitya's friend and even lets Nadia briefly ride in the car with them. While riding away in the car with his captors, Kotov reminds them who he is and his status, but he quickly realizes that they don't care and that it was Stalin himself who ordered his arrest. Only after looking into Mitya's eyes does Kotov realize the severity of the situation, causing him to breakdown in tears. Kotov is forced to make a false confession to all the charges Mitya framed him for and is shot dead in August 1936. Meanwhile, following Mitya's success in his revenge against Kotov, he ultimately commits suicide, as his revenge did not satisfy him in the way he thought it would. In addition, Maroussia is arrested and dies in the
Gulag in 1940. Although arrested with her mother and taken to a concentration camp, Nadia lives to see all three sentences overturned during the
Khrushchev Thaw, in 1956, and works as a music teacher in
Kazakhstan. ==Cast==