Sadako vs. Kayako

is a 2016 Japanese supernatural horror film directed by Kōji Shiraishi. It is a crossover of the Ju-on and Ring series. The film was first teased as an April Fools' joke on April 1, 2015, but was later confirmed on December 10 to be a real production. It was released in Japan on June 18, 2016, Indonesia on August 10 (followed by 4DX on February 15, 2017), and in North America on the streaming site Shudder on January 26, 2017. It received mixed reviews from critics. Plot A social worker visits the residence of an elderly woman, only to find her strangled by an electric cord. A nearby video player suddenly turns on and plays the cursed videotape. As she watches, Sadako Yamamura appears and kills the social worker. The video player is sold at a shop and bought by university students Yuri Kurahashi and Natsumi Ueno. When they find the cursed videotape inside, they play it. The footage has been upgraded, displaying a decrepit building instead of the usual well, and the curse deadline has been reduced to two days. Yuri gets distracted by her phone, leaving Natsumi to watch the tape in its entirety by herself. Afterward, they receive a disturbing phone call as Sadako manifests in the room behind Yuri, startling Natsumi.