I've watched a LOT of Eurospy/secret agent films, but this one is just RANDOM!

From 1965 "starring" John Ericson.

According to IMDB: "An American agent discovers that the Red Chinese have built a secret atomic city from which they will attempt to invade America."

And something to do with Atlantis or ghosts from Atlantis, I got lost around that point.

It looks nuts and therefore perfect Riff-fodder!