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.
| Actor | Role |
|---|---|
 Pina MenichelliCesarina Ruper | Cesarina Ruper |
| VVittorio Rossi PianelliClaudio Ruper | Claudio Ruper |
| AAlberto NepotiAntonino | Antonino |
| AArnaldo ArnaldiMoncabré | Moncabré |
 Gabriel MoreauEnea Cantagnac | Enea Cantagnac |
| AAntonio MontiNot listed | Not listed |
| GGina MarangoniEdmea | Edmea |
| CCamillo TalamoNot listed | Not listed |
| EEsperia SperaniNot listed | Not listed |
| LLeopoldo LamariNot listed | Not listed |