Before I even start my REVIEW, i have to state that i watched a non-English version, so there were no subtitles I did not understand what was going on at all, maybe that would have helped this movie if I knew what the actors were saying on stage.
I have seen all 6 Guinea Pig films, and this one honestly was the tamest compared to all 6 Guinea Pig films. I can completely see why this movie can be a part of the Guinea Pig universe, simply because the plot is thin as it is, and the movie is short of crazy Japanese insanity.
The plot is: A medical couple decides to torture a woman. No reason given. There were barely any shock or disturbing scenes. It was mostly just Japanese people being weird as possible. This movie reminds me of a weaker, boring version of Naked Blood, that actually focuses on a plot, and gives us a reason to Care, here that's completely wasted.
Imagine watching Martyrs' second half, that's pretty much what this movie really was. I was expecting a Gore disturbing fest like in the first Guinea Pig, instead, I got a tame, torture film that could have been better if it had a reason as to why all of this is happening and translations.