Sándor Esztáry lives a monotonous life with his wife, his son and his wife's impoverished relatives in his rural mansion until the arrival of another poor relative, Kitty, who was raised in America. Kitty is a modern-minded girl who quickly falls in love with Nicholas, a poor young man of good hopes. When she finds out that he is to marry a rich girl, she runs away to Pest and becomes a dancer in a nightclub.