The film covers a hundred years in the lives of the Ricordi family, the Milan publishing house of the title, and the various composers and other historic personalities, whose careers intersected with the growth of the Ricordi house. It beautifully draws the parallel between the great music of the composers, the historic and social upheavals of their times, as well as the "smaller stories" of the successive generations of Ricordi.

During a reception in a villa, wealthy banker Calandri is killed in the park with a gunshot. The gamekeeper Barra is immediately arrested, but he declares himself innocent. During the trial it turns out that the defendant had threatened the victim, guilty of courting his sister-in-law. But the deposition of a journalist present at the party soon leads to discover the existence of a dense network of equivocal relations between the victim, the guests and the servants. This judicial setting drama is allegedly the second Italian sound film after "The Song of Love", made using the RCA Photophone recording technique, and is also considered to be the first Italian detective film, a precursor to the later genre of Giallo films.

Aldo Piscitello, a minor government clerk, is forced in 1934 to join the Fascist party. When the war comes, he finds himself able only to talk ineffectually in secret against Mussolini, even as his own son Giovanni is sent into battle. By the end of the war, Aldo has found the courage to stand up for his beliefs, but by then it is too late.

Little Dick, the well-endowed dwarf servant of Master Limpcock is being pursued by Nymphomania, an ugly witch who must have 69 orgasms to turn herself beautiful again.

Anna was the maid of a lady who inherited an apartment in a building in the center of Rome.

Heidi leaves her beloved Alm and moves to Frankfurt, where she finds a new good friend in Clara. Aunt Dete wants Heidi to leave her grandfather on the mountain pasture and go with her to Frankfurt, where she is supposed to live with the Sesemann family and keep their paralyzed daughter Clara company. In this way, Heidi would enjoy an excellent upbringing and grow up with one of the richest families in Frankfurt. Aunt Dete sees a bright future for Heidi in the city. However, this idea is not met with enthusiasm by Heidi and her grandfather, Peter and his grandmother are also very reluctant to let Heidi go. After much persuasion and many promises from Aunt Dete, Heidi finally leaves her beloved mountain world with a heavy heart and travels to Frankfurt.

A comedy film.