明朝成(chéng )化年(nián )间(jiān )，朝纲腐败，奸邪当道。西厂东(dōng )厂为宦官把持，混淆黑白，陷害忠良，朝野内外噤若寒(hán )蝉。时有赵(zhào )怀(huái )安（李(lǐ )连杰 饰）等流亡剑客挺身而出，接连铲(chǎn )除东厂数名奸佞，致令阉贼胆战心惊。适(shì )值此时(shí )，风头正劲的西厂