In this case of a 99-year old unsolved murder, the son of a housewife who was brutally killed continues his determined search for answers. Despite the considerable passage of time, this quest has not lost momentum or public interest as he probes into the motive behind the horrifying crime, seeking both personal closure and justice for his late mother inside the framework of Japan's legal system.

Unsolved crimes, especially those as old as this, hold a certain fascination for the Japanese public, who tends to emphasize the values of justice, accountability, and resolution. The story reflects the tenacity of the family's pursuit for justice and public fascination, underlining Japan's social value of family ties and the legal value of resolving cold cases.

In the US or EU, cold cases of this nature are often revived by advancements in forensics or through popular media attention. The deep public and media interest mirrors the Japanese perspective, showing that the hunger for resolution and justice is universal. The main difference is the legal systems and how they handle such aged unsolved cases.