Johnny Carson, Don Rickles, and the Japanese Bath - 1968!!!
I'm not one for Japanese TV drama. Very bad, usually. And very derivative of American productions like 24, etc. But this one, is unique and very, very good. Excellent production. I'd pay to see it. Well, looks like I can. It's going to be a movie, continuing the story from where the TV drama left off.
With Nao Omori, the wonderful Kyohei Shibata and Chiaki Kuriyama among others.
You can watch the original trailers for each of the episodes here.