The shortcomings of the era of stagnation are criticized in a grotesque manner - it takes place at a train station and on a train.

Murad, a young man, lives by the old ethical norms that are still valid in the suburbs of his city. He had promised Tofig, his childhood friend, to give him his sister as a wife, but Tofig is in love with another girl. He forgets the promise and takes the girl home. Murad is offended. According to the code of honor, he must take revenge. One of the first films ever produced in the Soviet Union to challenge the sociopolitical establishment.

The plot of the film is based on real events that took place in the summer of 1958 on one of the beaches of Absheron, when Tofik Huseynov, a schoolboy from Baku, drowned in the sea while saving drowning children. The film begins before the opening credits: on a deserted beach by the raging sea, a young man, exhausted, pulls drowning girls out of the waves. One, then another, then a third... Then he rushes for the fourth, but drowns with her.

Summer 1942. Nazi troops storm the Caucasus. They are rushing to get their hands on Baku oil. An Abwehr special group called "Wartburg" has settled in the Nalchik area. In Baku, German spy Ziegel (Pavel Kadochnikov) heads to the oil fields from Maykop under the name of Soviet engineer Kashtanov. Tankers carrying gasoline begin to explode in the Caspian Sea. Soviet counterintelligence agent "Khazri" infiltrates "Wartburg"...