Men of the Underworld: Chapter 4

本片是一部日本片，上映于2016-02-26，由小泽仁志导演，由小泽仁志/波冈一喜/山口祥行主演。

剧情简介：The 4th entry in a 6-part series. Searching for more information about the spy within the WRC and needing networks and leverage to do so, Umehara (Ozawa Hitoshi) takes off to South Korea with his loyal second, Han (Yamaguchi Yoshiyuki) in tow. Meanwhile, Director Tamura (Sugata Shun), contacts Inspector Sano (Shinsui Sanshou) with info on Umehara's movements to bring his downfall. And Tadano (Namioka Kazuki) still pursues the truth about the "accident" he survived, and the burgeoning memory of a familiar pair of silhouettes ...

外文名：裏社会の男たち　第四章

地区：日本

导演：小泽仁志

演员：小泽仁志 / 波冈一喜 / 山口祥行 / Hideyuki Kawahara / Masahiro Noguchi / 佐佐木心音 / 远藤沙季 / Rina Otsuka / Jiro Okazaki