If you are expecting horror, forget it. If you are expecting "psychological thriller," forget that too. In fact, if you are expecting anything halfway moving, gripping, or attention-grabbing in the least, FORGET ALL ABOUT IT.
The film has a decent premise but unfortunately displays the absolute worst traits of a certain strain of Japanese horror films which, as another reviewer mentions, owe a lot to Miike's more exasperatingly BORING experiments, such as that "Ichii" crap.
The problem here is that this movie move's at a snail's pace. That would have been alright had there been some kind of payoff, but there is not. Characters stare at each other for MINUTES ON END inexplicably in the middle of a @#$# conversation, children see dead, bloodied bodies and simply stand there aloof like scarecrows before casually walking away--countless reactions are completely fake and unrealistic. The film was a great idea but any kind of dramatic effect is robbed from it by the stupid SILENCE and stilted dialogue which plagues the entire film.
If you think boring crap such as "964 Pinocchio" and the "All Night Long" series were "disturbing," you'll probably like this film too. If you're looking for a REAL MOVIE, you'll wish you hadn't given it the chance in the first place, especially considering it's nearly two hours long. (If they had had haflway normal dialog and half-way HUMAN reactions among characters, the film would've been an hour and a half).
If you're looking for good Asian horror/revenge/drama, see the Korean "Oldboy." As far as "Rinjin 13-gô" goes: AVOID.