明朝成化年(nián )间，朝(cháo )纲(gāng )腐败，奸邪当(dāng )道。西厂东厂为宦官把持(chí )，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 饰）等(děng )流亡剑(jiàn )客挺身(shēn )而出，接连铲除东厂数名奸(jiān )佞，致令阉(yān )贼胆战心惊(jīng )。适值此时(shí )，风头正劲的西厂(chǎng )