明朝成化年间，朝(cháo )纲腐败，奸(jiān )邪当道。西厂东厂(chǎng )为宦(huàn )官把持，混淆(xiáo )黑白，陷害忠良，朝野内外噤(jìn )若寒蝉。时有赵怀安（李(lǐ )连杰 饰）等流亡剑(jiàn )客挺(tǐng )身而出，接连铲(chǎn )除东厂数名(míng )奸佞，致令阉贼胆战(zhàn )心惊。适值此时(shí )，风头正劲的西厂