明朝成(chéng )化年间，朝纲腐败，奸邪当道。西厂东厂(chǎng )为宦官把持，混淆(xiáo )黑白，陷害忠良，朝野内外(wài )噤(jìn )若寒蝉。时有赵怀(huái )安（李连杰 饰）等流(liú )亡剑客挺身而出，接连铲除(chú )东厂(chǎng )数名奸佞，致令阉贼胆战心惊。适值此(cǐ )时，风头正劲的西厂