Anya, an exemplary housewife, devoted her life to taking care of her family. Relatives are used to the fact that mom is always alone at home with three children, while dad Sasha disappears at work. One day, offended by her husband's inappropriate antics, Anya decides to leave him with the children and find a job, starting an independent life. It doesn't work out all at once. And at this time, the children, being alone at home, make a real commotion.
The beautiful Sonya, the leading actress of the provincial theater, comes to Moscow. She is thirty years old and she understands that she does not have much time to realize her dream and become a real star. After another unsuccessful test, Sonya falls asleep in one of the Mosfilm pavilions, since she has nowhere to live. When the security guard tries to force her out of the film studio, Masha comes to her aid. Masha, at twenty-eight, is in no hurry. After graduating from the theater school, Masha recovered and does not feel confident in her body. Having chosen the position “my body is my business”, Masha finds herself in the safe world of cartoon voice acting. Masha is kind, with a good sense of humor.
Every Saturday fireman Anton Kalashnikov welcomes his 14-year-old daughter Kira from the dance. TV, dumplings for dinner - a standard set of entertainment from a Saturday dad for a teenage girl. But on this day, everything went wrong. Kira rings the intercom, Kalashnikov opens the front door, but the girl does not go up to the apartment. Anton has to ask for help from his neighbors in a concrete box, breaking through human indifference and past grievances.
Crises happen in any relationship. The most romantic day of the year has prepared serious challenges for the heroes. Will they find the strength to cope? Or will they be scared and disperse? The film is about the fact that true love is able to conquer everything, even if Cupid's arrow accidentally hit the wrong place.