Three boxers from Chelyabinsk decide to earn extra money at the Moscow tournament on fights without rules before flying to the World Championship. After learning about the violation of the sports regime, the head coach excludes them from the national team. The guys are eating sadly in a restaurant, discussing the inglorious homecoming. In the same institution, a business dinner of a well-known Moscow lawyer is held, with the protection of which, through no fault of the guys, a conflict ensues. Boxers demonstrate their skills and naturally end up in the police. They face imprisonment. However, the lawyer offers a deal: become his bodyguards or go to jail. The brave trio decides to change their tracksuits to classic ones.
34-year-old physicist-astronomer Ignat Halley, fascinated by the stars and work at the mountain observatory, flies to the capital to file for a divorce. In Moscow, under unusual circumstances, Ignat meets a mysterious girl Taisia Artemyev and meets her whole family: mother Yulia, sister Dusya and intelligent, eccentric grandmother Yanga Lvovna. This meeting turns everything upside down in the life of an astronomer. And on New Year's Eve, Ignat will have to make an important decision that will change not only his life, but also his new acquaintances.