电影改编自德国传说《花衣魔笛手》，讲述在朝鲜战争结束不久，一位名叫武龙[音译]（柳承龙饰）的魔笛手和他的儿子一起来到一个遭受到严重鼠患的偏远山区村庄。村长（李圣旻饰）允许武龙留下来，让他做些零工并且达成了驱除鼠患的交易。到了武龙要村长兑换诺言并离开的时候，却发现被欺骗了。武龙发誓要报仇，他把老鼠引回村庄，让村庄笼罩在恐怖之中，为实现一个古老的预言。South Korea after the Korean War. A father and also a musician is traveling with his son through the country to find a new home. They arrive at a remote village in the middle of the mountains. Though the people are polite, they seem also afraid of something. The father decides that they stay at night, because he thinks that they are just superstitious. But it turns out that the villagers are afraid because of supernatural and very deadly reason.