明朝成(chéng )化年间，朝纲(gāng )腐败(bài )，奸邪当道。西厂东(dōng )厂为宦官把持，混淆黑白，陷(xiàn )害忠良，朝野内外噤若寒蝉。时有赵怀(huái )安（李连(lián )杰 饰）等流亡剑客挺(tǐng )身而出，接连铲除东厂数名奸(jiān )佞，致令阉贼胆战心惊。适值此时(shí )，风头正劲(jìn )的西厂