明朝成化年间，朝纲(gāng )腐(fǔ )败，奸邪当道。西厂东厂为宦官把持，混淆(xiáo )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(liú )亡剑客挺身而出，接连(lián )铲除东厂数名奸佞，致令(lìng )阉贼胆战心惊。适(shì )值此时，风头正劲的西厂(chǎng )