The film’s plot is set during the war between Poland and the Soviet Russia (1919 – 1921). Wartime brutally encroaches on the life of a couple in love – Franek and Hanka. The Bolshevik troops cause damage to Polish villages and manor houses, and in one of the manor houses the invaders have a carousel. Luckily, the Polish cavalry comes to the relief just in time. Unable to wait passively, Hanka becomes a sister of mercy in one of the field hospitals near Vilnius, while Franek gains wide recognition after capturing a Russian spy.

A bleak tale of an affair between an actress and a Russian officer, based on the real story of the affair between Maria Wisnowska and Aleksandr Barteniew.

In the Battle of Małogoszcz Prince Jozef Odrowaz was seriously wounded. Miss Salomea Brynicka and his father risked their own lives giving him food and shelter.