Professor Sretenski is a scientist and director of a research center in Russia. He is separated from his wife and lives alone. His daughter, who lives with the mother, comes to his home and stays with him for a period, leaving her daughter with him. He raises his granddaughter, feeling a great affection for her.

Fragments of all three short stories retrospectively pass before our eyes. The most difficult thing is not to lose the person who came into your life. Everything can be returned, except the people we lost. Preserving a person is the greatest of arts.

Musical fantasy based on the play by M. Gorky.

The boy writes an essay at school in which he wants to be like his father - with mayonnaise, i.e. "MNS" (junior research fellow).

A drama about a psychological duel between a police detective and career criminal.

In a deserted tundra on the lake, a seaplane makes an emergency landing, on board of which bank collectors carry a large amount of money. A storm begins and the plane relates to the river delta. An unknown person steals money from an airplane and kills a geologist, an accidental witness. And a few days later the ship departs from the northern port for the last navigation voyage, where a recidivist hides among the motley company of passengers, and the captain begins his own investigation...

The women's handball team of one of the USSR sports clubs loses the semi-final match. Realizing that there are almost no chances to continue the fight against this team, head coach Samoilov takes a risk and releases young athletes with no international experience...

It was Christmas time. Three friends - a newspaper reporter, a bass player, and a lawyer - were on their way to visit someone. After buying gifts, they rushed to the train station. However, there were no seats available in the first-class compartment. In the second-class compartment, they found a lady sitting alone. However, the lady refused to let them enter the compartment. The friends decided to play a prank on the lady and took her to the train station to find out if her belongings were in the compartment. As a result, they had to pay for the lady's carriage and were unable to catch up with the train. The lady, who had seemed scandalous at first, turned out to be very nice and invited them to her house for Christmas.