明朝成化年间，朝纲(gāng )腐败，奸邪(xié )当道。西厂东(dōng )厂(chǎng )为宦官(guān )把持，混(hún )淆黑白，陷害(hài )忠良，朝野内外噤(jìn )若寒蝉。时有赵怀(huái )安（李连杰 饰）等流亡剑客挺身而出，接连铲除东厂数名(míng )奸佞，致(zhì )令阉贼(zéi )胆战心惊。适值此(cǐ )时，风头(tóu )正劲的西厂