明朝成(chéng )化年(nián )间，朝纲腐败，奸(jiān )邪(xié )当道。西厂东厂为宦(huàn )官把持，混淆黑白，陷害忠良，朝(cháo )野内外噤若寒蝉。时有赵(zhào )怀安（李连杰 饰）等流亡剑客(kè )挺身而出，接连铲除(chú )东厂数名奸佞，致令阉贼胆战(zhàn )心惊。适值此时，风头正劲(jìn )的西厂