The Snake Pit
Starring Olivia de Havilland, Mark Stevens, Leo Genn, Celeste Holm, Glenn Langan, Leif Erickson, Beulah Bondi, Lee Patrick, Howard Freeman, Natalie Schafer
It's a drama and mystery movie, and has a rating of 7.6 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Italy.