明朝成化年间，朝纲腐败，奸邪当道(dào )。西厂东(dōng )厂为宦官把持，混淆黑白，陷害忠良，朝(cháo )野内外噤若寒蝉。时有赵怀安（李(lǐ )连杰 饰）等流亡剑客挺身(shēn )而(ér )出，接连铲除东厂数名奸佞，致(zhì )令阉贼(zéi )胆(dǎn )战(zhàn )心惊。适值此时，风头正劲的西厂