The Scapegoat (1959 film)

The Scapegoat is a 1959 crime film based on the novel of the same name by Daphne du Maurier, and starring Alec Guinness, Nicole Maurey and Bette Davis.

A bewildered Barratt allows himself to be taken to De Gus chateau, where he meets his family daughter MarieNoel, wife Franoise Irene Worth, sister Blanche Pamela Brown and formidable mother, the Countess Bette Davis. None of them believe his story it appears that De Gu is a malicious liar so Barratt resigns himself to playing along. As time goes on, he feels needed, something missing in his sterile prior life.The next day, brotherinlaw Aristide Peter Bull discusses business with him. Later, in the nearby town, Barratt is nearly run down by De Gus mistress, Bla Nicole Maurey, on her horse. He spends the usual Wednesday afternoon tryst getting acquainted with her. The next time they meet, before he can confess the truth, she informs him that she has already guessed it. ........

Source: Wikipedia