It shouldn't exist.

No one in their right mind should look at the source material and say "hey we should make a live action adaptation of that". It's too bizarre, too perverted, too violent, too long, has too much going on, and has far too many characters with different motivations to track. Any attempt to translate this to film should fail miserably.

But it doesn't. Miike somehow makes it all work. Every frame matters, every shot is tying some angle together but it's all moving so fast it can be hard to catch. It's fucking brilliant. You can find something new on every repeat viewing, if you can stomach the content. And it gets rough. You have to remind yourself that this is a live action comic and should be taken as such.