明朝成化年间，朝(cháo )纲(gāng )腐败，奸邪当道。西(xī )厂东厂为宦官把持，混淆(xiáo )黑白(bái )，陷害忠良(liáng )，朝野内外噤(jìn )若寒蝉。时有赵怀安（李连杰 饰）等流亡剑(jiàn )客(kè )挺身(shēn )而出，接连铲除东(dōng )厂数名奸佞，致令阉贼(zéi )胆战(zhàn )心惊。适值此时，风头正劲的西厂