Small-time jewel thief Leo Martin is deserted by his partners-in-crime, club owner Gus Loman and driver Hatchett, when the robbery they are committing goes wrong. After serving his prison sentence, Leo emerges with an intricate plan for revenge. Leo implicates Loman, as well as his amoral boss, Gregory Lang, for murder -- but Inspector Rogers suspects Leo.
Poco después de haber ocupado el trono de Egipto, la bella Cleopatra recibe la visita del general romano Julio César. La relación amorosa que se establece entre ellos tendrá también provechosas repercusiones en el terreno político y militar.