Marta and Andrei meet on a business trip, fall in love and plan a wedding in their hometown. Unexpectedly, Marta's father and Andrei's mother oppose this. The reason for this dislike of the two families lies in the past - 30 years ago Nikolai and Olga were married and lost a child. And in the present, the happiness of Marta and Andrei is actively interfered with by Igor, the fiancé, who was married off by the girl's father, and Rita, who has fallen in love with another man's boyfriend.