明朝成化年间，朝(cháo )纲腐败，奸邪当道(dào )。西(xī )厂东(dōng )厂为(wéi )宦官把持，混(hún )淆黑白，陷害(hài )忠(zhōng )良(liáng )，朝野内外噤若寒蝉。时有赵怀安（李连(lián )杰 饰）等流亡剑客挺(tǐng )身而出，接连(lián )铲除东厂数(shù )名奸佞，致令阉贼胆战心惊。适值此时，风头正劲的西厂(chǎng )