明朝成化年间，朝纲腐败，奸邪当道。西厂(chǎng )东厂为宦官把持，混(hún )淆黑白，陷害忠良，朝野内外(wài )噤若寒蝉。时有赵怀(huái )安（李连杰(jié ) 饰）等流亡剑客挺(tǐng )身而出，接连铲除东厂数名奸佞，致令阉(yān )贼胆战心(xīn )惊。适值此(cǐ )时(shí )，风头(tóu )正劲的西厂