once i read this one-shot manga, but i have no idea who the mangaka is, let alone what the name of the story. I read it in french, it was presented by moebius aka jean giraud. he has a great interest in japanese manga and thus published a book with several obscure oneshots.
(please note his own works are great and most not 18+)
I searched in the library where i borrowed it from but i cant find it anymore.

following will be a short description of what i recall.
since it will be explicit i warn everybody under 18: GO AWAY NOW !

it's all set in a cubic space. no details are drawn. just tiles on the walls, only straight lines.
it isnt drawn in your basic hentai/manga style, as in big eyes and unreal physical features.
there is this woman who is sleeping and than being raped and sliced up by a man. than later she falls through several cubic spaces, being totally sliced up in little bits. actually it really reminds me of the film "the cube" but than manga.

now what im looking for is name of mangaka or any more info on what that book was called or anything else that could be relevant.

O_O
Whoa....gore...
Well, I don't know many gore series, but a few days ago, after reading one of the threads I found out about Mai-chan no Nichijou and well...it sounds freaky >_>

I didn't check it out because the genre doesn't tickle my fancy, but it could be it...maybe 😕

If not then you'll have to search through the horror/hentai genre....or wait for someone who knows, of course 😃

[img]http://i196.photobucket.com/albums/aa229/azrinirza/makotoshinkai1_zpse3901c5a.gif[/img]
Everyday I'm tumblin'

Nah i doubt it's Mai-chan. Doesn't sound the way it's described by the original poster. Mai-chan is also a lot of pages, and this oneshot sounds like it's not that much.

I think you're talking about this one Abstraction ^^

[img]http://www.ponpokopon.net/Katsu1.jpg[/img]

nope, isnt any of those.

the one i mean looks more like some serious samurai manga would be drawn.
but than without samurai..