Antonio Riccardi, a rare stamp dealer who is secretly a hired killer, pays for the violin lessons of his gifted brother Giuseppe. To meet the expenses of Giuseppe's concert debut he accepts a further job, but his decision to do so provides Detective Inspector Carson, who has long hoped to ensnare Tony, with an opportunity that might now enable him to bring about his downfall.
A police chief stationed in Egypt sets out to crack down on drug traffickers along the frontiers. With his assistant, he attempts to block the smugglers' passage along the notorious Cairo Road route into the country.
