A crime film about a British insurance investigator and an American businessman who join forces to recover the jewels of a Rajah recently stolen by a gang on the French Riviera.

An Oriental ruler, the Rajah of Bandor (Charles Lung), and his American wife (Sue Casey), are robbed of a fortune in jewels on the Riviera by a quartet of thieves led by Otto Von Herzen (Stephen Bekassy). The gang flees to Hong Kong, followed by British insurance investigator Charles Reeves (Robin Hughes) and his sister, Susan. Bill Whitfield (Warren Douglas), a not-too-bright American entrepreneur, becomes involved with Stella Strutzenbacher (June Vincent), a flashy and stylish member of Herr Von Herzen’s gang. The gang, already torn about by disagreements, is easy prey for Whitfield, Charles and Susan, who must capture and recover the Rajah’s jewels.