Sadako 3D is a revival or to use current fad terminology reboot of the Ring franchise. It is based on S (2012), a further novel in the Ring cycle of books by original author Koji Suzuki. The events of Ring are featured as past happenings, while the film involves an artist who is attempting to revive the spirit of Sadako. On the other hand, Sadako 3D also concerns a heroine who discovers the cursed video that is being passed among teenagers and the story follows fairly much the same path as the original film where she becomes infected and goes on a quest to find the well where Sadako was dumped. Of course, this is a Ring that has been updated for the modern era the analog tv broadcasts from the original are passe and the vhs tapes that featured in the American versions are all a thing of the past thus we now have a cursed viral video that is being transmitted by internet and in particular cellphones.
Ring was a classic of creepy mood and created a genre of uncanny, atmosphere-driven Japanese horror films. Sadly, Sadako, due to the unwise decision to conduct a Ring 3D film, abandons all that in favour of flashy pop-out CGI effects. The results might be akin to when the classic haunted house story The Haunting (1963) was remade as the disastrous and awful CGI-driven The Haunting (1999), one of the most mishandled remakes of all time. Hideo Nakatas uncanny atmospherics are replaced by absurd 3D scenes with hands reaching out of computer monitors and, even more ridiculously, ghost hands coming out of cellphones. The focus is no longer on atmosphere but on these 3D pop-up effects and scenes with victims falling out of windows in slow-motion or of amplified noises on the soundtrack intended to make you jump. At the climax of the film, we get the emergence of Sadako from the well but now she has absurdly gone from a creepily weird girl with hair draped across her face to dozens of spider-like creatures with giant insect legs and a girls face with hair draped across the eyes. Similar to Ring, the film here has a backstory for Satomi Ichihara where she was shunned because she had psychic powers alas, the script entirely fails to use this element in any way.
Sadako 3D 2 (2013) was a sequel also directed by Tsutomu Hanabusa. This was followed by Sadako vs Kayako (2016), a crossover with the Ju-on/The Grudge series.
Director Tsutomu Hanabusa had elsewhere only made the non-genre romantic comedies The Handsome Suit (2008), Boys School Drama Club (2011) and Heroine Disqualified (2015).
Trailer here (no English subs):-