明朝成化年间，朝(cháo )纲腐败，奸邪当道。西厂东(dōng )厂为宦官把持，混淆黑白，陷害(hài )忠(zhōng )良，朝野内外(wài )噤若寒蝉(chán )。时有赵怀安（李连(lián )杰 饰）等流亡剑客(kè )挺身而出，接连铲(chǎn )除东厂数名奸佞，致令(lìng )阉贼胆战(zhàn )心(xīn )惊。适值此时，风头(tóu )正劲的西厂