That Strange Desire to Love 1977    star_border 2
Angela and Marco are a new brother and sister, they live in a large country house outside the rest of the world, united by an at least ambiguous relationship, which goes far beyond fraternal affection.

Born of Unknown Father 1950
By taking the defense of Raymond Denis, accused of having killed his mistress, when she committed suicide because he did not want to recognize his child, the lawyer Claude Nogent, learns that he himself was born of unknown father.