Available On DVD At IOFFER.COM
A few sellers have this Italian film available on dvd at www.IOFFER.com.
Search for the film under the American title, In The Beach House; or it's also available from the seller, "greatraremovies" (by searching members).
This particular website is a great place to go when looking for that VERY tough to find movie, tv show, or made-for-tv movie.
Enjoy!