Husband of a strict self-made girl falls ill with a strange disease. Looks like coma, but he constantly and miserably cries. The doctor gives a recipe, which looks absurd first: to save her husband, she has to "become a woman". This coming back to femininity turns out to be the hardest nut to crack for the modern emancipated woman...

Katya and Gleb are happy in marriage, their charming little son Yegor is growing up. Nothing threatens their love until a young woman recovers with her baby and friend at sea. Gleb, busy with urgent work, forced to stay home.