A family who gathers once a year on the anniversary of their mother's death. It looked like a family gathering, but Sachiko, the new wife who participated for the first time, gradually began to feel a disturbing atmosphere.
Takuya, a young man who got lost. He meets a dubious woman, Miyako, in an alley in a residential area. Miyako says, "Never look behind you in the future." Why is that.