An insidious masked gang of hired killers has been terrorizing the countryside, with their mastery of the trident and an inherent brutality. But who are the men behind the masks, and what are the identities of the three chiefs in the gold masks? Overview: Another epic tale of vengeance and betrayal from director Chang Cheh. The insidious Masked Gang of hired killers have been terrorizing the countryside, with their mastery of the trident and an inherent brutality. But who are the men behind the mask, and what are the identities of the three chiefs in the gold masks? The answers inevitably lead to a few surprises, as battle is joined, the Venom mob dead the cast in this quick fire tale that boasts a stunning climax.