明朝成化年(nián )间，朝(cháo )纲腐败，奸邪当道(dào )。西厂东厂为宦(huàn )官(guān )把持，混(hún )淆黑白，陷害忠良，朝野内外噤若寒蝉。时有赵怀安（李连杰(jié ) 饰）等流亡剑客(kè )挺身而出，接连铲除(chú )东厂数名奸佞，致令阉贼胆战(zhàn )心(xīn )惊。适值此时，风头正劲的西厂(chǎng )