明朝成化年间，朝纲腐败，奸(jiān )邪当道。西(xī )厂东(dōng )厂为宦官(guān )把持，混淆黑白，陷(xiàn )害忠(zhōng )良，朝野内外噤若寒蝉(chán )。时有赵怀(huái )安（李连杰 饰）等流亡剑客挺身而出，接连铲(chǎn )除东厂数名奸佞，致令阉贼胆战心惊。适值(zhí )此时，风头正劲(jìn )的西厂(chǎng )