Based on the play of the same name by M. Gorky.

Young engineer Pavel Kaurov goes to his first destination — to the port city of Sibirsk. He is appointed to lead a group of cranes: gantry and floating. After several troubles Pavel mastered the port work and received a serious assignment. Meanwhile, his fiancee Nina, an architect by profession, is arriving in Siberia. However, besides Pavel, fellow students came to the station to meet her — Petunin's brother and sister, in whose house she is staying. Soon Annushka, who has long loved Pavel, arrives. From that day on, he had trouble after trouble. After a crane accident, which happened through his fault, the hero pulls himself together and does everything to regain the confidence of the brigade...

The famous surgeon academician Saburova decided on a very difficult operation with her own method developed at the time. Professor Sadovnikov revealed the bitter truth to Saburova - various symposiums, meetings and meetings distanced her from practical surgery, and it would be more correct to entrust the operation to another doctor. A domineering person by nature, Saburova met her colleague's advice as a grievous offense, but soon found the strength to admit that he was right.

The film is dedicated to the great Russian composer Pyotr Tchaikovsky (1840-1893). It tells of the last twenty years of the great master’s life, of his friendship with Baroness von Meck, an outstanding woman of her time, who for many years was Tchaikovsky’s guardian angel. The film also includes retrospections of the composer’s childhood and adolescent years, with Tchaikovsky’s life poetically recounted against the background of fragments from his operas and ballets performed by the best Russian musicians.

A lyric story which is taking place in the big automobile factory.