Also known as Il Sorriso Del Ragno, The Spider’s Smile and Sweet Blue Sweat, this is the only movie directed by Massimo Castellani, who was assistant director on Bloody Pit of Horror and Perversion Story. It was released on VHS by Magnum Video back in the day.

Tony Driscoll (Thomas Hunter) is an insurance man investigating a $5 million jewelry robbery in which he becomes the main suspect. That’s because a woman he hooks up with slips some jewels into his luggage and then gets killed. It features Gabriele Tinti, and while you’d hope it was a full-on giallo, it’s closer to Eurocrime or even a travelogue of Greece.
Elena Nathanail is the femme fatale, and this was produced by Sergio’s brother Luciano. Writers are Italo Gasperini (Scalps, Wrath of God) and Armando Morandi.
When all I have are facts, know that the movie won’t be memorable.
You can watch this on YouTube.