A film-performance with Imre Kalman's operettas "The Violet of Montmartre", "The Devil's Rider", "Silva", "The Duchess from Chicago", "The Gypsy Premier", "La Bayadere".
Engineer Yusupov from the Research Institute of Automation, the project manager, once comes to the conclusion that his project is outdated. The hero finds another, truly innovative solution and starts the work anew, although not everyone agrees with his bold decision.
