What's the name of a Japanese movie that pretends to be dead?

The film is based on the novel Diary of Menna Coffin by Japanese writer Nobuyuki Aoki, and tells the life of a Japanese undertaker. The film observes all kinds of deaths and stares at the caring people around the deceased from the perspective of a funeral novice. The film won the highest prize in the 32nd Montreal International Film Festival and the Best Foreign Language Film Award in the 8th1Academy Awards.

I hope I can help you, thank you