Hussy (1980)

Beaty is a prostitute working out of a high-class London cabaret where Emory is a technician. They begin an affair encumbered by her job, his lack of money, and their pasts: Beaty has a ten-year-old son who lives with her ex, and she has a dangerous former boyfriend; Emory has a wife who died in questionable circumstances and a shady friend who shows up with a scheme for making lots of money. Beaty and Emory want to sort things out, but the odds are against them. Life is no cabaret.

Imdb