明朝成化年间，朝纲(gāng )腐败，奸(jiān )邪当道(dào )。西厂东(dōng )厂为(wéi )宦官把持(chí )，混淆黑白，陷害忠良，朝野(yě )内外噤若寒蝉。时(shí )有赵怀(huái )安（李连杰 饰）等流亡剑(jiàn )客(kè )挺身而出，接连铲除东(dōng )厂数名奸佞，致令阉贼胆战心惊。适值此时，风头正劲(jìn )的西厂