Heisuke works hard at a factory job to provide for his wife, Naoko, and young daughter, Monami. He takes pleasure from the small things, like breakfast with both of them after a night shift. His placid life is rocked when, looking up from his microwave dinner one evenings, he realizes that the TV news that he wasn't paying attention to is reporting a catastrophic bus accident and the names of his loved ones.When Monami finally wakes up from a coma, she seems to think she's Naoko, who has died protecting her daughter. More disturbingly, the girl knows things only Naoko could know. The family life that resumes between the modest man and a companion who looks like his daughter but seems like his dead wife is ticklish-funny until it begins hurtling toward a soul-shattering end.