Based on the novel of the same title by Grigori Baklanov.
One evening, the agronomist Mishakov was hit by a truck in the vicinity of a small town. The truck driver Karpukhin became an inintentional murderer. The investigation reveals that Karpukhin is not to blame; yet, yielding to the prejudiced prosecutor, investigator Nikonov is willing to view the facts differently... Source : www.lenfilm.ru