As much as I enjoy Japanese cinema, then it is just not realistic to think that every single movie will be good. And "The Suicide Manual" (aka "Jisatsu manyuaru") was a massive swing and a miss. I only made it 35 minutes into the movie before I had to turn it off as I was risking suicide if I was to continue to be exposed to more of it. It was without a doubt one of the most boring and unappealing Japanese movies I have stumbled upon in a long, long time.
The story was utter nonsense, seeming like a myriad of different fragments that director Osamu Fukutani attempted to piece together like a puzzle, but failed most miserably.
The characters in the movie were as dull and unappealing as the rest of the movie, and you never really buy into any of them as being actual persons with characteristics or personalities, as they were lacking depth. They were essentially just cardboard cutouts.
I have no intention of returning to finish this movie ever. It already took away 35 minutes of my life. If you enjoy Japanese movies then stay well clear of "The Suicide Manual".