An engineering plant gets a claim for replacement from the constructors of hydroelectric power station in connection with an excavator breakdown. Constructors think that it happened because of the rejects. To find the reason, a commission headed by Roman (A.Kochetkov), including his friend, a first-class metalworker Peter is commissioned by the plant to hydroelectric power station. In the morning, before the business trip, Roman comes home, where Peter is already waiting him and gets to know that his wife Kate doesnt love him any more and wants to live with Peter. Punch-drunk Roman suggests that everybody delays all face-to-face meetings till the end of his business trip and consider that this conversation didnt happen. Peter refuses to go but Roman insists and thinks that he cant manage without him. And only there during a trip they can handle everything and decide what to do.