Takashi and his wife Misako, who lost their beloved son in a trapeze accident, have never recovered from the shock, and have kept the urn in their bedroom because they do not want to leave their son's ashes. One day, the couple hears that they can see their son if they go to the old Isejin Tunnel.
A modern Japanese family loses their youngest son in a tragedy. The mother, Misako, plunges into depression and the oldest son Akira starts blaming himself for the death of his brother.
