Hunter in the Dark
In Hideo Gosha's film, loyalty and ambition lead to tragic consequences for a yakuza boss (Tatsuya Nakadai) and his bodyguard.
Starring Tatsuya Nakadai, Yoshio Harada, Ayumi Ishida, Keiko Kishi, Ai Kanzaki, Kayo Matsuo, Tetsurō Tamba, Hajime Hana, Koji Yakusho, Hideo Morita
Watch "Hunter in the Dark" from streaming services Criterion Channel, Amazon released in 1979. It's a action & adventure and drama movie, and has a rating of 6.9 out of 10 from Imdb which is usually fine for this kind of movie.