明朝成化年间，朝纲(gāng )腐败，奸邪当道(dào )。西厂东厂为宦官(guān )把持，混淆(xiáo )黑白，陷害忠良，朝野内外噤若寒蝉。时有赵(zhào )怀安（李(lǐ )连杰 饰）等流亡剑客挺身而出，接连铲除东厂数名(míng )奸佞(nìng )，致令(lìng )阉贼胆(dǎn )战心惊。适值此时(shí )，风头正劲(jìn )的西(xī )厂