In an isolated house, in Brittany, live two sisters around whom gravitate a whole series of strange characters. Between the eruption of the vagrant voyeur and that of the couple in love, the youngest kills her eldest and goes mad.

María Casares
Thérèse

Pierre Brasseur
'Douze Apôtres'

Claude Larue
Nicole

Julien Carette
Father Jus

Paul Faivre
Albert
Serge Andréguy
Bernard
Jean Crédoz
Guard
Marius David
Jean Gabert
Micheline Gilbert
Paulette
Jean Heuzé
Norière

Pierre Leproux

Palmyre Levasseur
Madame Le Moal
Robert Lussac
Doctor Coulon

Jane Marken
Madame Jobic