Moscow, 1902. The famous director Konstantin Stanislavsky, in search of inspiration for staging a new play, decides to get acquainted with the life of the city "bottom". He turns to Vladimir Gilyarovsky, a recognized expert on the Moscow slums, for help.
An obsessive young scientist creates a time machine to bring technology back to ancient times, thereby accelerating humanity's technological progress. However, in the past the hero received a far from warm welcome...
Yasha recently retired after serving many years at a factory, with a highlight of his career being a delegate of the Communist Party of the Soviet Union in 1976. Yet his future is left unknown when he emerges in new realities that he finds difficult to accept. The world has changed after the collapse of the Soviet Union, yet he tries to hold on to what once was. Thus enters former Soviet leader Leonid Brezhnev. Appearing like Yasha’s alter ego, he guides Yasha, giving amusing commentary and voicing what Yasha should say or do. Brezhnev’s presence gives way for more historical leaders that Yasha idolises to arrive. Nicolae and Elena Ceausescu, Fidel Castro and Che Guevara, Josip Broz Tito and Erich Honecker, and even the African dictator Jean Bedel-Bokassa all make an appearance! When Yasha takes an oath of loyalty to them, this creates trouble for his family.
Klim Shipenko is making a film about Lomonosov starring Pavel Derevyanko. But the actor is overtaken by a creative crisis, and for inspiration he goes to the homeland of the scientist whom he sees in his fantasies. Pavel settles in the house of the Belovs, whose head Egor earns by physical labor. The appearance of Derevyanko changes the usual way of life of the locals: Egor is afraid of losing his wife Masha, their daughter Polina falls in love with a celebrity, and deputy Kholmogor builds an election campaign with the help of a star.
The Myagkov family is forced to sell their house and move into an old apartment. But it turned out that it already has an owner - a ginger cat who is not at all happy with his new neighbors and does not hide it. Attempts to catch and evict the furry pest fail one after another. The head of the family, Mikhail, is ready to take a decisive step to get rid of the cat, but he accidentally steps on a damaged extension cord, and they receive a powerful electric shock. Having come to his senses, the head of the family acquires the superpower to hear and understand the red-haired prankster. Under new circumstances, the Myagkovs decide to leave the cat in the house, and from that moment on, the life of an ordinary Moscow family changes.