明朝成化年间，朝(cháo )纲腐败，奸邪当道。西厂东(dōng )厂为宦官(guān )把持，混淆黑白，陷害忠良，朝野内外噤若寒蝉。时有赵怀(huái )安（李连(lián )杰 饰）等流亡剑客(kè )挺身而(ér )出，接连铲除(chú )东厂数名奸(jiān )佞，致令阉贼胆(dǎn )战(zhàn )心惊(jīng )。适值此时，风头正劲的西厂