Are the letters a notice of approaching death?

The Three Undelivered Letters

Name: The Three Undelivered Letters
Genre: Drama, Mystery
Released: 1979-10-06
Duration: 130 min
Cast: Komaki Kurihara, Takao Kataoka, Ai Kanzaki, Ryo Hikime, Keiko Matsuzaka

19792h 10mDrama, Mystery

A young Japanese-American man arrives at his grandmother's old hometown in Yamaguchi, begins to stay at her family's elite but dysfunctional household, and gets entangled in a sinister plot of murder.