Well, I was drawn to this 2017 movie as it was a Japanese horror movie. Sure, I had not even heard about it prior to getting to sit down and watch it in 2020, and I had no idea what to expect from the story. However, I will say that given the movie's cover, then I wasn't actually having much of any high hopes for the movie.
But still, it being a Japanese horror movie is more than sufficient to get me to watch something. And so I did. But I can't claim that "Corpse Prison Part One" (aka "Shishûgoku: Ki no hen") from director Hideo Jôjô was particularly outstanding, much less entertaining actually.
I didn't know that it was based on a Manga, but as this movie turned out, I have little interest in getting acquainted with the Manga, much less with this Part Two for the movie.
The acting in the movie was adequate, taking into consideration the severe limitations imposed on the cast by the lack of a proper storyline and script.
The storyline in "Corpse Prison Part One" was just atrocious. It was rather boring to be bluntly honest, actually.
My rating for this 2017 Japanese horror movie is a mere three out of ten stars. I was not impressed in any way, nor were I particularly entertained by what transpired on the screen. If you enjoy Japanese horror movies, there are far better choices readily available.