明朝成化年(nián )间，朝纲腐败，奸邪当道。西厂(chǎng )东(dōng )厂为宦官把持，混淆黑白，陷害忠(zhōng )良，朝野内外噤若寒(hán )蝉。时有赵怀安（李(lǐ )连杰 饰）等流(liú )亡剑客挺身而出，接连铲除东厂(chǎng )数名奸佞，致令阉贼胆(dǎn )战心(xīn )惊。适(shì )值此时(shí )，风头正(zhèng )劲的西厂