The film is about the first oil-well in the world in the world in the 1920th.

Two Soviet partisans leave their starving band to get supplies from a nearby farm. The Germans have reached the farm first, so the pair must go on a journey deep into occupied territory, a voyage that will also take them deep into their souls.

Andrei and Tanya love each other, which is why frequent partings are so difficult for them: Andrei is a test pilot, and Tanya works on television, and both are constantly on business trips. They have two sons — twins. For eight years of marriage, they cannot count a total of three when they were together. And yet they are happy...

One evening, in the company of his friends, the bachelor Stas for the sake of entertainment called the number, the numbers of which were called by his friends, putting a comic condition: “If a woman answers, you marry her.” A really pleasant female voice responded. Stas didn't dare to admit his company in this, again wanted to hear it, but couldn't remember the phone number. Then he asked everyone to remember their number. Having got acquainted with Lyudmila, Stas realizes that she is the woman of his dreams.