The Whip and the Body
La frusta e il corpo (original)
Le baron Kurt Menliff revient dans sa demeure de la Baltique après un long exil. Une atmosphère d'épouvante envahit bientôt le sombre château familial.
Starring Daliah Lavi, Christopher Lee, Tony Kendall, Ida Galli, Harriet Medin, Gustavo De Nardo, Luciano Pigozzi, Jacques Herlin
It's a mystery and horror movie, and has a rating of 6.7 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from France.