Forget everything you might have seen in Ring 2 and Ring 0: Rasen (AKA The Spiral) takes a different approach to the other sequels of Hideo Nakata's influential J-horror Ringu.
In this version of the events that follow the first film, Koichi Sato plays Mitsuo Ando, a grief stricken pathologist who contemplates suicide after the tragic death of his young son, but who finds himself unable to go through with the act.
When he is called upon to perform an autopsy on his old friend Ryuji Takayama (Hiroyuki Sanada), Ando discovers the existence of the cursed VHS tape that caused so much trouble in Ringu. After cracking a code left to him by his deceased pal, Ando comes to believe that the deadly tape was intended as a macabre present which would provide the solution to his suffering.
The truth, however, is far more sinister: Takayama's gift to Ando is actually the return of his son, but for this feat to be possible, Ando must first betray the whole of humanity by allowing Sadako's curse to spiral out of control.
Although a slow moving and often rather confusing movie, Rasen is not an entirely worthless experience: the film introduces some interesting ideas about the true nature of the curse and reveals its objective—to alter the course of the entire human race. Casual horror fans might be disappointed by the distinct lack of scares, and once again gore is almost non-existent, but Rasen should be enjoyable enough for those who love creepy Asian flicks and don't mind doing a bit of research to fill in the blanks (apparently, reading the books helps a lot with understanding the story).