In sunny Naples, Pulcinella receives a letter from St. Petersburg. It's his cousin Petrushka, who informs him that he and Petrushka are heirs to a small treasure left to them by a musician uncle who worked for Tsar Alexander II. Pulcinella rushes to the Russian city during Carnival, dreaming of great riches. But gaining possession of the inheritance will be no walk in the park: the two cousins ​​will have to overcome difficult trials, guided by the powerful and mysterious magician Sharlatan and the gruff monk Aliosha. Will Pulcinella and Petrushka triumph over the greedy Moor and the cold Russians?