The Long Goodbye(2014)

Original title: ロング・グッドバイ

Tamotsu is suspected of murdering his actress wife Shizuka Harada. He flees to Taiwan and commits suicide. Tamotsu’s friend Banji Masuzawa works as a private detective, and has doubts about Tamotsu’s death, but the case is covered up by powerful media mogul Heizo Harada.