明朝成化(huà )年间，朝纲(gāng )腐败，奸邪当道。西厂东(dōng )厂为宦官把持，混(hún )淆黑白，陷害忠良，朝野内(nèi )外噤若寒蝉。时(shí )有赵怀(huái )安（李连杰 饰）等流亡剑客挺身而出，接连(lián )铲除东厂数名奸佞，致令阉贼胆(dǎn )战(zhàn )心惊。适值此时，风头正(zhèng )劲的西(xī )厂