The young Anselmus Aselmeyer fulfilled a long cherished dream: He travels to Venice, the city of his dreams. Once there, the porter Pipistrello directs him immediately to the hotel of his boss, and Anselmus lands in the middle of a wedding party. Mestre Mangiabene, a wealthy oilman, marries the beautiful but completely depleted Marchesina dei Bisognosi. But the secretly loves an officer.