二次大战结束后，一个民族截然分成两个不同体制的国家，也让漂泊在异国他乡的族人望穿秋水，不知何处是故乡。20世纪70年代，从小出生在日本的朝鲜人松浩（井浦新 饰）按照父亲的命令回到从未踏足的故乡朝鲜，以支持共产主义事业的建设。谁曾想这一分别便是1/4个世纪，松浩在故乡组建家庭，曾经他疼爱的小妹理绘（安藤樱 饰）也长大成人。这一日，喜悦和忧伤的信息同时传来，松浩因患病而得到政府特批，得以赴日接受为期三个月的治疗。久别重逢的一家人以及曾经的故友亲朋，复杂的情绪在彼此心间漫延……
本片是日籍韩裔女导演梁英姬根据家族的真实经历改编，并荣获2012年电影旬报十佳影片第一名和最佳女主角奖（安藤樱）。

Documentary focuses on 'Sona', the daughter of the director's brother who moved to North Korea from Japan in the early 1970s. Through Sona, the film shows the generation that migrated from Japan to North Korea and their offspring who were born and raised in North Korea. Sona's upbringing is quite normal, but the special aspects within North Korean society make their presence known in a subtle way. By showing the process of the migratory people establishing their identities within North Korean society, North Korea becomes a region that shows a universal view of human society in general and not just a closed society. This approach is a special feature of Yang. She adds normalcy through her depiction of a family to 'North Korea'; a name that we have come to regard as something quite special.