明朝成化年间，朝纲腐(fǔ )败，奸邪当(dāng )道。西厂东厂为宦官把(bǎ )持，混淆(xiáo )黑白，陷害忠良(liáng )，朝野内外(wài )噤若(ruò )寒蝉(chán )。时有赵怀安（李(lǐ )连杰 饰(shì )）等流亡剑客挺身而出，接连铲除东(dōng )厂数名奸佞，致令阉贼胆战心惊。适值此(cǐ )时，风头正劲的西厂(chǎng )