I’m fairly certain this film came from Eastern Europe. I saw this in the early 1970s. A man is sitting on the beach when suddenly a gorgeous nude woman rises from the water, then strolls indifferently past him. Later, these two are in bed and there’s a swirling camera shot of them from above. I have the vague feeling that the movie addresses the man’s unstable state of mind–is the woman real or a mere fantasy? In color.