The plot of A Taxing Woman is interesting/enthralling, regardless of the production date or language of the film. Watching tax evasion cases unfold is surprisingly interesting, presented in a manner that shows the more human side of government organizations. (OK, if not the 'human side', at least you get to see what it's like on the inside.) From a cultural perspective, a 1980s Tokyo is also interesting, with shots of the cityscape, pachinko parlors, love hotels, etc.

One last comment: There is nudity in this film, but It adds to the story of the film, justifying why some of the characters do what they do.