Web of Deception(1971)

Original title: Il sorriso del ragno

An international crime syndicate absconds with over $5 million in precious jewels. Police are baffled. The insurance companies are outraged. When dashing Tony Driscoll-private investigator-is called in, the robbery investigation quickly becomes a murder case. And Driscoll is suspect #1. Dodging cops as well as criminals, Driscoll steps into a subterranean world. A world of beautiful women, exotic ports and sleek fast cars. Where hunter becomes hunted-and romance is heartbeats away from death.