In 1911, Stáňa Járský was giving music lessons to little Jiřina Horníková and fell passionately in love with his pupil's mother. The evening before he left for his studies, Mrs. Helena succumbed to him. Nine years later, engineer Járský met the grown-up Jiřina in Prague - and love met him again. However, this time he was not lucky either, the girl had to save the family factory with a marriage of convenience. After another nineteen years, CEO Járský returns home after a long stay abroad. His hair is graying, but he is still charming and elegant. How will his meeting with young Helenka, the granddaughter and daughter of his former loves, turn out?