Terése Flynn’s review published on Letterboxd:
Right from the start you know this is going to be a film that's aesthetically appealing (at least in some aspects), just as you know it's going to be violent. The woman drinking wine on the top of a staircase accompanied by a porcelain dog. Then walking down to where her husband and son are and trying to get a hold of her husband's cellphone, but gets beaten down.
She really hates her husband. She tries to cut his dick off when he's sleeping, but he wakes up just in time to stop her. He's too strong for her, so she comes to the conclusion that the only way to hurt him, is to hurt their son instead.
Moebius begins in a way you expect a crazy movie to end, only getting a short explanation of what has lead to these actions. But there's more to come in this dialogue free South Korean film. There's no talking going on at all in the whole movie actually. At least not audibly. Making you even more observant and on edge as you're taken on a hell ride of self mutilation, rape, sexual desires, group pressure, shame, revenge and incest.
The movie ends where it began. At that staircase with the porcelain dog, and with a man with a flashlight looking for the head of the stone Buddha where he prays. And I'm satisfied with this. This film didn't need to be more than this. Rather a little bit less. I'm more than familiar with Kim Ki-Duk though, so nothing in this gruesome drama really surprised or shocked me. It was just what I expected and wanted. Or, even more than I wanted actually. Maybe it's a little bit too morbid? A little bit too tragic?... Or who am I kidding? There's no such thing as too morbid and too tragic. I loved it.
Ps: The Swedish expression "det ballar ur" have never been as suiting.