Berlioz denounces the persecutions suffered by Sax worthy of the Middle Ages. Amid accusations, manipulations, and sabotage, Sax defies traditions, threatening the interests of manufacturers and veteran musicians of that time, as reflected in the report of the French Industry Exhibition. Amid intrigues and challenges, the unexpected turn will come with the arrival of an enigmatic gentleman to his workshop, holding uncertainty about the fate of Sax and his extensive musical legacy.