Title: Black Belly of the Tarantula
Country: Italy, France
Inspector Tellini investigates serial crimes where victims are paralyzed while having their bellies ripped open with a sharp knife, much in the same way tarantulas are killed by the black wasp. As suspects keep dying, Inspector directs his attention to a spa all the victims had a connection with.
Marcello Danon (story), Lucile Laks (screenplay)