orologio en Altadefinizione. Claudio is married to Cesarina, a frivolous and unfaithful woman. After the death of their only son their marriage is cold. While his wife lives her free life, Claudio is dedicated to the development of sophisticated weapons, elaborating the project of a new cannon; but smitten by the virtuous Jew Rebecca he can not surrender to his feelings because his religion prevents him from getting a divorce.