Five Dolls for an August Moon

Mario Bava directs this Italian giallo starring William Berger and Edwige Fenech. When George Stark (Tedoro Corra) invites a group of people for a weekend getaway on his private island, he hopes to use the opportunity to talk Professor Gerry Farrell (William Berger) into selling his latest invention. But one-by-one the guests are mysteriously killed off and put into the walk-in freezer, leaving the few survivors to find the killer amongst them before he or she strikes again.