明朝成化年间，朝纲腐败，奸邪当(dāng )道。西厂东(dōng )厂为宦官把持(chí )，混(hún )淆黑白，陷害忠良，朝(cháo )野内外噤若寒蝉。时有赵怀安（李(lǐ )连杰 饰）等流亡剑(jiàn )客挺(tǐng )身而出，接连铲(chǎn )除东厂数名(míng )奸(jiān )佞(nìng )，致令阉(yān )贼胆战心惊(jīng )。适值此时，风头正劲的西厂