Sergio Martino is one of the notable directors in the Euro-horror genre along with Mario Bava, Jess Franco, Jean Rollin, and others. My personal favorite of his movies is "The Strange Vice of Mrs. Wardh". His "Assassinio al cimitero etrusco" ("The Scorpion with Two Tails" in English) is an OK, not great movie. It's a convoluted story about a woman whose archaeologist husband gets murdered while looking through an ancient cemetery in Italy. Elvire Audray, who plays the lead role, looks as if she could have been one of Alfred Hitchcock's icy blondes. I haven't seen all of Martino's movies, but of the ones that I've seen I'd say that his best ones star Edwige Fenech*. This one is more mediocre. Other cast members include John Saxon (Roper in "Enter the Dragon" and the father in "A Nightmare on Elm Street") and Van Johnson (one of the stars from Hollywood's Golden Age).
*Quentin Tarantino referenced her in "Inglourious Basterds": Mike Myers's character is named Ed Fenech.
*Quentin Tarantino referenced her in "Inglourious Basterds": Mike Myers's character is named Ed Fenech.