On 20th of April 1945 the Soviet army launches its attack on Berlin. The end has come for Nazi Germany and Hitler decides to commit suicide. In Prague K.H. Frank (Nazi Secretary of State and Chief of police in the Protectorate of Bohemia a Moravia) discusses with his commanders how to transform the city into an impregnable fortress, but the Praguers do not intend to wait any longer. From the early hours of 4th of May people start assembling in the streets and tearing down German signs. On the next day, the 5th of May, the uprising begins.

This lavish Soviet/Czech co-production is based on Fyodor Dostoyevsky's famous novel, The Gambler, which tells the story of a Russian living in Germany, in a gambling resort. This film is set at the turn of the century, and was filmed in Karlovy Vary (Carlsbad), Czechoslovakia. Played by Nikolai Burlyayev, the gambler succumbs completely to his addiction, using up every resource he has (human, spiritual and financial) in his wagering, finally becoming a rootless drifter.

Grammar school teacher Bláha hurts himself in pursuit of a red lizard, and is lying unconscious in the lonely house of Santrucek family. The postman, who found Bláha's coat and hat in the water, announces to everyone in town that the professor has drowned. But, the venerable citizens are at that moment more interested in the theatre group with the beautiful guest actress Eva Gazdová. They demand a change of repertoire and manage to persuade the theatre manager to have the group play the musical comedy The Red Lizard instead of an established play.

Rudolf Bartoš, the owner of a farm, quarry and factory, is extremely rich, however, he is unapproachable and irritable, and the dread of his employees. One day he falls down a steep slope by a river and hurts himself. The quarryman Fábera finds him groaning in pain and takes him to his cottage.