The Marquise Eugenia di Maqueda, an orphan raised by the nuns, marries Raimondo Corrao, but on their wedding night she finds out that he is her brother. The piece of news is in a letter written from Paris by their father, a womaniser who lives and hides from them in the French headtown. The pair decide, to avoid the scandal, to live as brother and sister. He will later leave for the war in Lybia, she will find solace and sexual satisfaction in the arms of the family chauffeur.
as Eugenia di Maqueda
as Raimondo Corrao, marchese di Maqueda
as Silvanno Pennacchini, l'autista
as Barone Henri de Sarcey
as Ruggero Di Maqueda
as Florida, madre di Eugenia
as Evelyn
as Don Pacifico
as Soldato Siciliano