After the death of her husband, Tamara gave her daughter Olya to an orphanage and left for the North. There she creates a new family and, years later, calls the matured girl back. Not finding love in her mother's house, Olga left for a Siberian construction site with the plumber Roman. But the first difficulties frightened him, and he left her, never knowing that Olga was expecting a child.

The presidents of two superpowers, the Soviet Union and the United States, are expected to meet for important negotiations. However, the meeting in jeopardy due to raging of the Russian Mafia, settled in America. Mafioso Rabinovich even interfere with the conversation of top secret hotline between the presidents. So begins a comedy, in which KGB agent Fyodor Sokolov and CIA agent Mary Star expose the Artist, a head of the Mafia, feigning of various Soviet leaders.

1972 Soviet animated film by Roman Kachanov