明朝成化年间，朝纲腐败，奸邪当道。西厂(chǎng )东厂为宦官把持，混淆黑白，陷害忠良，朝(cháo )野内(nèi )外噤(jìn )若寒蝉。时(shí )有(yǒu )赵怀(huái )安（李连杰 饰）等流亡剑客(kè )挺身而(ér )出，接连铲除东厂数名奸佞，致(zhì )令阉贼胆战(zhàn )心惊。适(shì )值此时，风头正劲(jìn )的西厂(chǎng )