明朝成化年间，朝(cháo )纲(gāng )腐败，奸(jiān )邪(xié )当(dāng )道。西厂东厂为宦官把持，混淆黑(hēi )白(bái )，陷害忠良，朝野内外噤(jìn )若寒蝉。时有(yǒu )赵怀(huái )安（李连杰 饰）等流亡剑客挺(tǐng )身而出，接连铲除东厂数名奸佞，致令阉(yān )贼胆战心惊(jīng )。适值此时，风头正劲的西厂(chǎng )