Incipient international art dealer Jonathan Argyll is eager to be the conduit for a minor French painting on it's way to the buyer in Rome. But when he arrives, the buyer refuses the painting and then dies. Adding injury to insult, Argyll discovers that the painting he's holding is hot--apparently it was stolen during the war and played a part in the betrayal of the Resistance. Finally Flavia di Stefano, Argyll's girlfriend, is forced to take charge and save her incompetent boyfriend.