1945. Soviet offensive is approaching Cracow. Local resistance cooperate despite political differences to save the city from destruction planned by Germans.
When Estonian violinist Eduard Sõrmus starts his concert tours in Europe, he is convinced that the world revolution is about to begin. His mission as a Red Violinist is to call the proletariat around the world to join with the revolution. It is only two things - music and revolution - that Eduard has dedicated himself to. His audience is enchanted by his performance and ignited by his ideas. With this knowledge, he travels Europe between the two world wars, accompanied by his faithful friends, his audience's admiration and the hostility of the authorities.
When a motorcyclist dies in an accident, lieutenant Kreutzer and his colleague Arnold receive the order to investigate the backgrounds of this mysterious case. Although the leads point to murder, head physician Dr. Nikolai, the driver of the car involved in the accident, maintains his innocence and even has an alibi. With a lot of arduous detail work, Kreutzer follows all leads and evidence. Both Nikolai’s colleagues and his son act suspiciously. Eventually, Kreutzer convicts the criminal who secretly used the physician’s car for his criminal dealings.
Claudia is a self-confident girl who spends time in a Young Pioneer camp and wants to prove that she can keep up with the boys in a scouting wide game.
