明朝成化年间，朝(cháo )纲腐败，奸(jiān )邪当道。西厂东厂为宦官把持，混(hún )淆黑白，陷害忠良，朝野内外(wài )噤若寒(hán )蝉。时有赵怀安（李连(lián )杰 饰）等流亡剑(jiàn )客挺(tǐng )身(shēn )而出，接连铲除东厂数名(míng )奸佞，致令阉贼(zéi )胆战心惊。适值此(cǐ )时(shí )，风头正劲的西厂