The film is based around the interactions of a triad group with a police officer as well as opposing yakuza organizations. When the younger brother to a renegade police officer becomes the lawyer to the triad group, an argument between the two leads to the downfall of the organization.
Review from the comment
Takashi Miike is known to push the envelope throughout his ultraviolent portfolio, and early in his career he put that on display in Shinjuku Triad Society. I can tell you the story is about a crooked cop (Kippei Shina) obsessed with taking down a gangster (Tomoro Taguchi) and his cronies after they bring the cop's shifty attorney brother into their fold, but the plot is so thinly executed that it really doesn't need explaining.
Everything plays second fiddle to shock value in Shinjuku's 110 minutes, and outside of Taguchi giving a fierce turn as the psychotic antagonist, there really isn't anything memorable here , at least anything good to remember.
I am no prude when it comes to blood on the screen. But I also need something to hold onto in the middle of all that plasma splashing around and there is absolutely nothing gripping on display here.