One day, three siblings receive a postcard from their mother who left them a long time ago. But all it says is I miss you. Three siblings are disconcerted by the sudden contact, but eventually, they go on a trip to meet their mother.　　Credit　　Director

《智异山》由《王国》《信号》的金银姬作家执笔，《太阳的后裔》《阳光先生》《鬼怪》的李应福导演执导。以广阔的智异山秘境为背景，讲述上山的人们之间的悬疑故事。将展开穿梭于山中，解救遇难者的国立公园突击队的故事。

朱勇常被上級欺負，卻一直保護著剛入伍的菲力。外宿當天，上級想找出告發自己的下屬，最後懷疑到朱勇和菲力身上，並開始毆打他們。始終默默承受的朱勇和菲力，沒有開口供出告發者，直到菲力的牙齒遭打斷，上級才停止施暴。為了救回菲力的牙齒，朱勇帶著他去找牙醫姐夫，沒想到更大的噩夢在等著他們…