A young German, Werner Müller, turns out to be a volunteer in the neurological department of an ordinary St. Petersburg hospital. A foreigner, overwhelmed by the impulse to help all the sick and needy, has a long and eventful day ahead of him. Every now and then, finding himself in comical situations and making his way through misunderstandings, the volunteer discovers all the facets of the Russian national character.
Misha's life didn't go well. Overnight, he lost his girlfriend, his job, and his confidence in the future. Having bought an armchair on Avito, he finds inside a folder with documents and a huge amount of money belonging to the right hand of the governor of the city. Thinking about what to do with the find, Mikhail begins to gradually fix communal defects in the yard, which deserves the respect of residents and the status of a people's deputy. However, the governor discovers the loss of documents, and elections are coming soon in the city... Will popular love and a mysterious folder help Misha take the governor's chair?
Moscow, 1952, mid-October, the XIX Congress of the CPSU had just ended. A communal apartment on Bolshaya Pirogovka. In one of the rooms lives the Petkevich family: Ariadna with her husband Boris and her parents, professor of philosophy Peter Kazimirovich and his wife Angelina Fyodorovna. For those few months that remained until Stalin's death, the family experiences a series of dramatic events. But on a background of terrible time, antisemitism, fabricated "case of doctors", denunciations and snitches, there are people who live their lives without losing dignity.
To save his business, formerly successful psychotherapist Kholmogorov is forced to take on his team a new employee, simple janitor Klava who, using her humane warmth and natural empathy, as opposed to Kholmogorov's trendy techniques, really heals people's souls and helps them overcome any, even the hardest psychological problems. Kholmogorov is skeptical at first; he doesn't believe in the success of this enforced experiment, but, after a while, he realized that Klava not only helps him attract new clients but also sort out his own personal problems.