Lieutenant-Commander Vladimir Kozlov must find a bride and get married in a few days.

A story about two very different sisters who are forced to trade places.

Misha, a cheerful and inexhaustible six-year-old prodigy, blows up a kindergarten as a result of another experiment. He is truly upset only by the lack of attention of his parents, who are on the verge of divorce. Right on New Year's Eve, Misha suddenly becomes the hero of a fantastic story: he is kidnapped. The hapless kidnappers expect to get a ransom for the boy, but they do not even suspect what kind of child fell into their hands. The tragicomic nature of the situation is complicated by the fact that another "mysterious force" enters the struggle for the boy, trying to "outsmart" and take advantage of his unusual abilities...

Dasha is in the eighth grade. She is a very ordinary girl, she has no mother, she lives with her father and younger sister Ulyana. Her father works as a car mechanic and communicates with eccentric clients, and Dasha has to take care of her sister, in which her elderly neighbor Pavel sometimes helps her. Dasha loves to dream. She imagines that she lives in a fairy tale, and the people around her are her fairy tale characters. Once, lost in her dreams and telling her sister a fairy tale at night, she imagined everything so clearly that the fairy tale "came to life": Dasha became Cinderella, and Ulyana became Thumbelina.

Dasha is in the eighth grade. She is a very ordinary girl, she has no mother, she lives with her father and younger sister Ulyana. Her father works as a car mechanic and communicates with eccentric clients, and Dasha has to take care of her sister, in which her elderly neighbor Pavel sometimes helps her. Dasha loves to dream. She imagines that she lives in a fairy tale, and the people around her are her fairy tale characters. Once, lost in her dreams and telling her sister a fairy tale at night, she imagined everything so clearly that the fairy tale "came to life": Dasha became Cinderella, and Ulyana became Thumbelina.

After a painful break up a journalist is traveling to the Elbrus mountains where he meets another woman.