明朝成化年间，朝纲(gāng )腐败，奸邪(xié )当道。西厂东(dōng )厂为宦官把(bǎ )持(chí )，混淆黑白，陷害忠良，朝野内外(wài )噤若寒蝉。时(shí )有赵怀安（李连杰 饰）等流亡剑(jiàn )客挺身而出，接连铲除东厂数名奸佞(nìng )，致令阉贼胆战心惊。适值此时，风头正劲(jìn )的西厂(chǎng )