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.
Director: Luigi Comencini
Writer: Ivo Perilli, Luigi Comencini
Director of Photography: Tonino Delli Colli
Producer: Adriano De Micheli, Pio Angeletti
Eugenia di Maqueda
Raimondo Corrao, marchese di Maqueda
Silvanno Pennacchini, l'autista
Barone Henri de Sarcey
Ruggero Di Maqueda
Florida, madre di Eugenia
Evelyn
Don Pacifico