A mysterious man under the name Mister X performs in the circus, playing violin on a chair suspended in the air by ropes. His breathtakingly sad melodies reflect his internal turmoil - he's in love with a noble lady and this relationship is frowned upon in their society.

On this beautiful spring evening, excerpts from famous operettas performed by Masters of the Soviet era, including the unforgettable, beloved since childhood, Nikolai Kashirsky, the young rising star of the Moscow operetta Tatiana Shmyga, the amazing timbral possibilities of the voice - Evgeny Kibkalo and other Soviet singers.