明朝成化年间，朝纲腐败(bài )，奸邪当(dāng )道。西厂(chǎng )东厂(chǎng )为宦(huàn )官把持，混淆黑白，陷害(hài )忠良，朝野内外噤若寒蝉。时有赵怀(huái )安（李(lǐ )连杰 饰）等流亡剑(jiàn )客挺身而出(chū )，接(jiē )连铲除(chú )东厂数名(míng )奸佞，致令阉贼胆战心惊。适值此时，风头正劲的西厂