Police Lieutenant Mikhail Ermakov is an honest and incorruptible law enforcement officer who has gained fame not only for his special approach to work, but also for his indifference to alcohol. The integrity of a police officer becomes the reason for his transfer from the capital to a remote village, where he will live in the house of the first beauty Nastya. Despite love at first sight, life and work are not easy for Mikhail. Local residents every now and then try to treat the lieutenant to a drink; even district police officer Grishchenko constantly makes attempts to distract the Moscow specialist from his duties. Nastya invites Mikhail to pack his things and return to the capital, but Ermakov does not intend to give up so easily...