A James Bond-type burglar King Kong (Samuel Hui) and his friend Albert "Baldy" Au (Karl Maka), a bald police detective join forces to try to track down a rare set of stolen precious diamonds before it ends up in the hands of a notorious European mobster named "Black Gloves" (Filthy Harry in the dubbed version and during the English-speaking parts of the original film). The two unlikely duo are supervised by Baldy's wife, Supt. Nancy Ho (Sylvia Chang), a masculine, fiery-tempered policewoman as they are chased by many mafia members throughout the film in crazy chase sequences involving a number of car and motorbike stunts.