明朝成化年(nián )间(jiān )，朝(cháo )纲腐败，奸邪当道。西厂东(dōng )厂为(wéi )宦官把持，混淆(xiáo )黑白，陷害忠良，朝野内外噤若(ruò )寒蝉。时有赵(zhào )怀(huái )安（李(lǐ )连杰 饰）等流亡剑(jiàn )客挺身而出，接(jiē )连铲除东厂数名奸佞，致令阉贼(zéi )胆(dǎn )战心惊。适值此时，风头正劲的西厂