The plant's director, Vladimir Petrovich Nesterov, is busy at work all the time. He meets his wife and daughter during breakfasts at most. They don't have common interests and issues to discuss. And suddenly, Nesterov's regular and established lifestyle becomes broken in a moment with a phone call from a stranger, who called himself his son. Meeting with his son set up new priorities in Nesterov's life. He becomes eager to seek more contact not only with new son, but with his present family as well - his wife and daughter...