明朝成化年间，朝纲腐败，奸邪当道。西厂东厂为宦(huàn )官把持，混淆(xiáo )黑白，陷害忠良，朝野内外(wài )噤若寒蝉。时有赵怀安（李连(lián )杰 饰）等流(liú )亡(wáng )剑客(kè )挺(tǐng )身而(ér )出(chū )，接连铲除东厂(chǎng )数名奸佞，致(zhì )令阉贼胆战心惊。适值此(cǐ )时，风头正劲(jìn )的西厂