After watching so many of Matsumura's films, I do consider myself a fan of his work, which is an honor (Excuse my lack of modesty). The first All Night Long film is a relatively dull and dreary film until the climatic conclusion that leaves you nearly second-guessing. If you'll allow me to express a certain disdain for the film, I found myself jumping through Asian after Asian so fast that the faces melded together in a yellow-skinned mosaic, both of the physical impression and character traits. I couldn't differentiate friend from foe and many random incidents occurred leaving me in a daze.
Three young adults meet in various ways and all have one thing in common; humility. Whether it's the local gangs or cherished women, these boys cannot catch a break. They range from sweet and condensed to man-child and irritating to the bookworm stereotype. All three of these very different persona's clash in the end for a blood bath similar to the likes of Battle Royale or 2LDK, sans any political or science fiction undertones. The end is the culminated arrival of what the series is known for but as the old saying goes "Too little, too late".
To further fit to the wise scheme of needless sensationalism, the Japanese obsession with Nazis is displayed mind-numbingly well. As our trio of mistakable heroes enters the den of an "evil" gang of bullies, you will notice a swastika banner sticking out on the far back wall. This is a dead end philosophy of the characters whose life span is thankfully shorter than yours. Just as shown and demonstrated in Beautiful Girl Hunter, it seems there's more members to the National Socialist Japanese Workers and Welfare Party than meets the eye.
The original All Night Long is an entry needed to experiment with the audiences on the level of sadism and torture. Had Matsumura throttled all out on his first assignment, what could have been would have most likely been cluttered and polluted with inane situations, much like his Concrete-Encased High School Girl Murder Case. Considering the idea of him directing a sequel, I'm sure it would have been a vast improvement, maybe even transcending into territory of "marvelous". All Night Long is essential, but due to the series having non-connected story lines, I'd start with the second and work my way up.
I kid you not.