Year 1983. Yulya Morozova studies foreign languages at the University of Leningrad, plays sports and does not even imagine that in the very near future she will have to work in the KGB.

1983. Yulya Morozova studies foreign languages at Leningrad University, plays sports and does not even imagine that in the very near future she will have to work in the KGB. She is very similar to the deceased wife of the American spy Jim Wheeler, who comes to Leningrad to meet with an agent working in a secret research institute. Counterintelligence officers, led by Volokhov, are starting a complex espionage game, intending to identify a "mole" in the defense industry. To do this, they plan to introduce Yulya into the American's inner circle, hoping that he will take the bait.