Il laureato
Story involves a young student (the title "laureate") who's boarding with Foster and Del Rio, but the untranslated version I watched offered little clue to what the ostensible plot line was about. It's meant to be a period piece, with some Scott Joplin type music on the soundtrack.
Directors: Joe D'Amato
Writers: Donatella Donati
IMDB: tt1935823