Billa and Ginnie are 'nightclub hostesses' in London as well as roommates. Apparently being a hostess was code for prostitutes...though the film seems to avoid saying that.
Ginnie (June Ritchie) is incredibly annoying, shallow and without direction in life. Billa is moody...perhaps because she's just found out she's pregnant. As far as their relationship goes, you wonder why they are friends as they are so different...and Ginnie is, as I mentioned above, incredibly annoying as well as selfish. Eventually their friendship is on the line when they both fall for the same married man.
About the most interesting things about this film is seeing William Hartnell (the first Dr. Who) playing Billa's father as well as seeing a brief glimpse of a very young Donald Sutherland in the hostess club. Otherwise, it's hard to care about the story because you don't care about these two women...and there's very little reason to. This is a serious flaw with the movie.