明朝成(chéng )化年间，朝纲腐败，奸邪当道。西厂东厂(chǎng )为宦官(guān )把持，混(hún )淆黑(hēi )白(bái )，陷害忠良，朝野内外(wài )噤若寒(hán )蝉。时(shí )有赵怀安（李(lǐ )连杰 饰）等流亡剑客挺身而(ér )出(chū )，接连铲除东厂数名奸佞，致令阉贼胆战心惊。适值此时，风头正劲的西厂(chǎng )