So who killed Sapphire. That's the movie's plot; however, the underlying theme is racial prejudice, a generally touchy topic at the time, even for British films. As I recall, the movie got more coverage than usual for a foreign release, at least in the LA area. The lovely Sapphire may look White, but genetically she's half-Black. Her troubles start when she "passes for White" in a London society still riven by prejudice. Engaged to the son of a reputable White family, her racial make-up causes rifts within the circle once her heritage is known. Naturally, the suspects start off with the family of her intended.
The twin threads of race and murder are skillfully woven into a difficult screenplay that nevertheless compels attention from start to finish. Credit a highly efficient performance from Nigel Patrick for holding together the disparate elements as his chief investigator works his way through London's many precincts. I like the way the screenplay portrays levels of racial dislike from both Whites and Blacks without getting too judgmental. Also, it looks like the exteriors were shot on location without any prettifying. Some of the neighborhoods in fact amount to about the last word in urban decay. Happily, director Deardon keeps things moving in unobtrusive fashion right down to the rather surprising finish. Anyway, the 90-some minutes amount to a topically compelling package that deserved its initial hoopla and still does.
