The film raises acute issues in construction, where, back in the 1970s, all the social shortcomings of large-scale but short-term production projects were concentrated: premature completion of projects, mismanagement, weak control, theft, and fraud.

Anna Georgievna Smirnova is a serious, businesslike and judicious person. It was these strengths of her character that helped the woman achieve high career results. Anna is a deputy and director of a textile factory in the Moscow region, who has long put an end to her personal life. She lives with her elderly mother. Her husband died, and her only daughter, Irina, is married. But suddenly, in a sanatorium in the southern resort of Anna, she meets a man named Volodya. He is a Muscovite, a former pilot, and now a driver. Volodya is younger than Anna, behind him two unsuccessful marriages. Between already middle-aged people a feeling of mutual sympathy erupts.

Comedy of manners with elements of grotesque. The hero of the tape - an employee of a solid research Institute San Sanych lubomudrov - an extraordinary personality. Charming trickster and subtle psychologist, he is fluent in the art of communicating with the "right" people.

By chance, two middle-aged people met - the telephone operator of the hotel Lina and the chief engineer of the construction department Kirillov, who had arrived on official business from Leningrad in one of the provincial cities of the country. Behind everyone has setbacks in family life. A sincere feeling that brought two lonely people closer together helped to see those around them in a new way. They are already over forty. Both are lonely. Having met by chance and fell in love with each other, they never became happy.

In December 1917, a Finnish delegation arrives in St. Petersburg to meet Vladimir Lenin to seek recognition of Finland's independence.

Junior Lieutenant Maleshkin, an unshooted graduate of the school, commands the crew of the self-propelled gun SU-100. All the subordinates of Maleshkin are older than him and much more experienced. The authority of the young commander is tested at every step, he quarrels, then reconciles with his crew.