Pasha (an avid mountaineer at heart) and Lisa, who lived together for twenty years and raised two children, suddenly realize that their ardent love is almost gone, and they understand each other badly. It happens in any family. But in some families, these crises are somehow resolved, and everything rolls on the usual track. Our heroes are quite unexpectedly tightened in such a cycle of events that takes your breath away! In the year of the twentieth anniversary wife puts an ultimatum — either I or mountains. And that's just when my husband is going to go to the mountains for the last time....