Czar Alexander II (Curt Jurgens) falls in love with a schoolgirl (Romy Schneider) shortly before his assassination.
The life and story of Catherine Dolgorukov, called Katia, his boarding school for girls until her affair and her marriage to Czar Alexander II.
When visiting a girls' boarding school makes the married Czar Alexander II introduced to the rebellious schoolgirl Katya. He falls in love and invites her to a court ball in the Winter Palace. To gossip to counter the court, he sends his mistress for a time to France. On her return to St.Petersburg, she is first a maid and after the death of the Empress, the second wife of the Czar. Eventually Czar Alexander II is assassinated.