明朝成(chéng )化年间，朝纲腐败，奸邪当道。西厂东厂为宦官把持，混(hún )淆黑白，陷害忠(zhōng )良，朝野内外噤若寒(hán )蝉。时有赵怀安(ān )（李连杰 饰）等流(liú )亡剑(jiàn )客(kè )挺身而出，接(jiē )连(lián )铲除东厂数(shù )名奸(jiān )佞，致令阉(yān )贼胆战心惊。适值此时，风(fēng )头正劲的西厂