明朝成化年间，朝纲腐败，奸邪当(dāng )道。西厂东厂为宦(huàn )官把持，混淆黑白，陷害忠良，朝野内外噤(jìn )若寒蝉。时有赵怀(huái )安（李(lǐ )连杰(jié ) 饰）等流亡剑客(kè )挺身而出，接连铲除东厂数名奸(jiān )佞，致令阉(yān )贼胆(dǎn )战心惊。适值此(cǐ )时，风头正(zhèng )劲的西厂(chǎng )