在这部黎明剧情片中,跳出《比海還深》（2016）的助導身位，廣瀨奈奈子繼承恩師是枝裕和一貫家庭缺失主題，以圓熟的敘事技巧，剖開父子關係的思考空間。憑《誰知赤子心》（2004）成為史上最年輕康城影帝的柳樂優彌，經歷過高山低谷，在死亡邊緣走了一回，與這個落泊孤絕角色感同身受。自殺不遂被中年鰥夫收留，獲編的名字竟與他的亡兒相同。亦父亦子的微妙關係，卻被兩人過去的秘密動搖。兩個「缺」的人生，能否合成一個「圓」？
Tetsuro stumbles upon a lost and homeless man by the river. He takes the man home, feeds and shelters him and allows him to work at his wood shop. The man's name is Shinichi and he is soon ingrained into the surrounding, but he has a secret or two. Then we find out that he is not the only one.
