明朝成化年间，朝纲腐败，奸邪当道(dào )。西(xī )厂东厂(chǎng )为宦官(guān )把(bǎ )持，混淆黑白(bái )，陷(xiàn )害忠良，朝(cháo )野内外噤若寒蝉。时有赵怀(huái )安（李(lǐ )连杰 饰）等(děng )流亡剑客挺(tǐng )身而出，接连铲除东厂数名奸佞，致令阉贼胆战心惊(jīng )。适值此时，风头正劲的西厂