A mentally disturbed man takes residence in a halfway house. His mind gradually slips back into the realm created by his illness, where he replays a key part of his childhood.

Struggling single mother Annie Laird impulsively agrees to serve on a jury, hoping for a little excitement in her humdrum life. But she gets far more than she bargained for when she's forced to sacrifice the truth to save her son from the mob's seductive, psychotic enforcer.

The sister of a famous, but as yet uncaught, criminal named "The Hexer" is murdered. Inspector Higgins of Scotland Yard believes that "The Hexer" will surface to take his revenge on his sister's killers, and plans to set a trap to finally capture him. However, soon bodies start piling up, and it looks as if "The Hexer" may get away yet...

When her grandson is kidnapped during the Tour de France, Madame Souza and her beloved pooch Bruno team up with the Belleville Sisters—an aged song-and-dance team from the days of Fred Astaire—to rescue him.

Taking place thirty years before the events of Ringu, Ringu 0 provides the shocking background story of how the girl on the video became a deadly, vengeful spirit.