Moon of the Wolf
Starring David Janssen, Barbara Rush, Bradford Dillman, John Beradino, Geoffrey Lewis, Royal Dano, John Davis Chandler, Claudia McNeil, Dan Priest, Robert Phillips
It's a mystery and horror movie, and has a rating of 5.1 out of 10 from Imdb which is fairly okay for this kind of movie.
Watch it here
Not found streaming from Italy.