Le Joueur d'Échecs plot
Polish Lithuania is toiled under the iron rule of Russia in 1776 and tensions between the Russian occupiers and the Poles are high. The eccentric inventor and Austrian diplomat Baron Wolfgang von Kempelen has in his care the stubborn soldier Boleslas Vorowski and his idealistic foster sister Sophie Novinska; both are leaders of the Polish resistance. Only the friendship between Boleslas and a Russian lieutenant, Prince Serge Oblooff and the (chess) rivalry with Major Nicolaieff, keep Boleslav and his supporters under control. However, when Boleslav kills a Russian soldier who raped a Polish dancer and Sophie leaves her lover, the Russian Prince, under pressure, the peace is over.