The Sicilian Clan
Roger Santet is really a convicted murderer appeared from prison by the Sicilian clan headed by the Vittorio Manalese that is aging. They conspire to steal a huge cache of stone from a display in Rome. The mobster friend Tony Nicosia shows that a way to find the rocks is to ditch the transportation airplane while it is en route to New York as they're preparing for the heist. The dogged inspector Le Goff is currently using all the available tools to thwart their plans. Although heist itself is successful, Santet finds himself trapped with Manalese's Daughter in Law