Moscow, 1952, mid-October, the 19th Congress of the CPSU has just ended. Communal apartment on Bolshaya Pirogovka. The Petkevich family lives in one of the rooms: Ariadna with her husband Boris and her parents, professor of philosophy Pavel Kazimirovich and his wife Angelina Fyodorovna. In the few months that remained before Stalin's death, the family is going through a series of dramatic events. But against the backdrop of a terrible time, anti-Semitic sentiments, a fabricated "doctors' case", denunciations and informers, there are people who live their lives without losing their honor and dignity. Difficult twists of fate will not be able to prevent our heroine from remaining a pure and sincere person and, as a result, unexpectedly, meeting love.