The Hot, the Cool and the Vicious (1977)

"His temper was hot. His vengeance cool. His fighting vicious. A showdown of the mightiest!"

The sleepy town of Black Stone erupts into martial turmoil when a counterfeiting ring, run by the mysterious golden-haired Mr. Lung, comes under the scrutiny of undercover agent Ching, a reformed assassin and expert of southern fist boxing.