明朝成化年间，朝纲腐败，奸邪当(dāng )道(dào )。西厂东厂为宦官把持，混淆黑白，陷(xiàn )害忠良(liáng )，朝野内外噤若寒蝉。时有赵怀安（李连杰 饰）等(děng )流亡剑(jiàn )客挺(tǐng )身(shēn )而出，接连铲除东(dōng )厂(chǎng )数名奸佞，致令阉(yān )贼胆战心(xīn )惊。适值此时，风头正劲的西厂