Five Dolls for an August Moon

Five Dolls for an August Moon (1970) is a horror, mystery, thriller directed by Mario Bava rated 5.7/10.

A wealthy playboy gathers a group of bourgeois friends at his isolated beach house for a weekend of relaxation. When bodies start pilling up, they realize they’re trapped with a killer in their midst, sending them in a frenzy to figure out who amongst them is killing the others before they are killed next.