Takakura is a former detective. He receives a request from his
ex-colleague, Nogami, to examine a missing family case that occurred 6
years earlier. Takakura follows Saki's memory. She is the only surviving
family member from the case. Meanwhile, Takakura and his wife Yasuko
recently moved into a new home. Their neighbor, Nishino, has a sick wife
and a young teen daughter. One day, the daughter, Mio, tells him that
the man is not her father and she doesn't know him at all.