《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。

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 …