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.
| Actor | Role |
|---|---|
 María CasaresThérèse | Thérèse |
 Pierre Brasseur'Douze Apôtres' | 'Douze Apôtres' |
 Claude LarueNicole | Nicole |
 Julien CaretteFather Jus | Father Jus |
 Paul FaivreAlbert | Albert |
| SSerge AndréguyBernard | Bernard |
| JJean CrédozGuard | Guard |
| MMarius DavidNot listed | Not listed |
| JJean GabertNot listed | Not listed |
| MMicheline GilbertPaulette | Paulette |
| JJean HeuzéNorière | Norière |
 Pierre LeprouxNot listed | Not listed |
 Palmyre LevasseurMadame Le Moal | Madame Le Moal |
| RRobert LussacDoctor Coulon | Doctor Coulon |
 Jane MarkenMadame Jobic | Madame Jobic |
| AAlbert ParazNot listed | Not listed |
| DDenyse RéalRachel | Rachel |
| MMadeleine SuffelLéontine | Léontine |