明朝成(chéng )化年间，朝纲腐败，奸邪当道。西厂东厂为宦官(guān )把(bǎ )持，混淆(xiáo )黑白，陷害忠良，朝野内外噤若寒(hán )蝉。时有赵怀安（李连(lián )杰 饰）等流亡(wáng )剑客挺身而出，接连铲除东(dōng )厂数名奸佞，致(zhì )令阉贼(zéi )胆战(zhàn )心惊。适值此时，风头正(zhèng )劲的西(xī )厂