A young engineer Pavel Kaurov arrives at his first job - in Sibirsk, a port city. He is appointed head of the crane department in the port and offshore. After a few incidents, Pavel manages to adapt and receives an important mission. At this time his fiancée Nina, an architect, arrives in Sibirsk. However, he is not alone in picking her up at the station, there are also two of Nina's university friends - the Petuninys, brother and sister, who welcome her into their home. Shortly after, a certain Annushka, a young woman in love with Pavel also arrives in Sibirsk. From that moment on, Pavel accumulates misfortunes one after another. Through his fault, a major crane breakdown occurs at the port... Pavel tries to pull himself together and regain the trust of his team...