Bungalow, it's your turn then.

This looks like some Japanese version of The Invisible Man. Am I close or am I completely wrong?

something like that.

There appears to be several Japanese movies in that vein, in the 50's, like monster, mystery man movies. Now, I haven't seen any of those, but I used to watch this great TV show 'Shock Corridor' and it often aired snippets of some more or less obscure films, many of them were Japanese. And there was a talk, in one episode, about this kind of movies. I think the guy that directed the second Godzilla movie made a version of The Invisible Man or was inspired by it. But, I can't remember his name. :(

this film is more in the vein of 1960s japanese art cinema than 1950s monster b-movies.

The face of another (1966)
in other words:

http://2.bp.blogspot.com/_4RKNUuVV_4...ndage+Face.jpg

Captain Caveman's ex-avy ?

indeed

^^
Who's Afraid of Virginia Woolf

Guess
http://img195.imageshack.us/img195/3863/345i.jpg