明朝成化年间，朝纲腐败，奸邪当(dāng )道(dào )。西厂东厂(chǎng )为宦官把持，混淆黑白，陷害(hài )忠(zhōng )良，朝野内外噤(jìn )若寒蝉。时(shí )有赵怀安（李(lǐ )连杰 饰）等流亡剑客(kè )挺身而出，接连铲除东厂数名奸佞(nìng )，致令阉(yān )贼胆战心惊。适值(zhí )此时，风头正劲的西厂(chǎng )