该，测试者，进入老年公寓。有奇怪的声音从隔壁一个陌生的名叫Hyunggu的男孩的生活。一天，Hyunggu和他的母亲被残酷杀害。

  Hyunjin, a test taker, moves into an old apartment. There are strange sounds from next door where a strange boy named Hyunggu lives. One day, Hyunggu and his mother are cruelly murdered.