明朝成化年间，朝(cháo )纲腐败，奸邪当道。西厂东(dōng )厂为宦官把持，混淆黑白，陷(xiàn )害忠良(liáng )，朝野内外(wài )噤若寒(hán )蝉。时有赵怀安（李连杰 饰(shì )）等流亡剑客(kè )挺身而出，接连铲除东(dōng )厂(chǎng )数(shù )名(míng )奸佞，致令阉贼胆战心惊。适值此(cǐ )时，风头正劲的(de )西厂