A Polish drama from Zbigniew Gniazdowski about love and secret documents.

Directed by Zbigniew Gniazdowski and Aleksander Hertz.

Grand Duke Konstanty marries Countess Joanna Grudzińska. However, Joanna still loves Major Łukasiński, and she agreed to the marriage out of a sense of patriotic duty. Łukasiński is arrested. The November Uprising breaks out. The conspirators capture Belweder Palace. Joanna hides Konstanty from them.