明朝成化年(nián )间，朝纲腐败(bài )，奸邪当道(dào )。西厂东厂为宦官把持，混淆黑白，陷害忠良，朝野(yě )内外噤若寒蝉。时有赵(zhào )怀安（李(lǐ )连杰 饰(shì )）等流亡剑(jiàn )客(kè )挺身(shēn )而出，接连铲除东(dōng )厂数名奸(jiān )佞，致令阉贼胆(dǎn )战心惊(jīng )。适值此时，风头正劲的西厂(chǎng )