A son comes to Leningrad on the birthday of his mother. He is the director of a large Siberian construction, twice married, happy in work, and in family life. His second wife Lida is also here. She brought her son and daughter with her. The youth of the mother of the family fell on the 30s. Life practically did not change its principles and beliefs. And it's not clear to her children, and even more so grandchildren, for whom her ideals do not mean anything.
A family of a private stud-farm head takes cover from a Civil War in a forsaken estate in Urals steppe. Once an old family friend Victor, lieutenant of White Guard, shows up in the estate and claims that he wants to come out of action and live according to the laws of God. The old man marries his daughter and Victor, but that is the end of peace in this house, taking into account that the white Cossacks are getting nearer
In the surreal aftermath to a plane crash at sea Dr. Iven an eminent scientist is the only survivor to be taken into the confidence of the alien rescuers. He learns that the world with its weapons of mass destruction is not ready for the wonders of the culture of the pacifist visitors. The situation is further complicated by the close relationship that blossoms between the doctor and the female alien, and due to this relationship he is the only survivor allowed to retain his memory of the events, unlike the other survivors including his wife, whose memories are erased.