Kath (Beryl Reid) comes across Mr. Sloane (Peter McEnery) in the cemetery, doing sit up on the grave he says belongs to his parents. Soon the flirtatious Kath has brought Mr. Sloane back to the home she lives in with her brother Ed (Harry Andrews) and her Dadda (Alan Webb). But when Dadda recognizes Mr. Sloane as the man who murdered their boss he ends up being murdered by Mr. Sloane as well.
As a child who grew up in the 80s I remember seeing Beryl Reid in this or that often playing one of those amusing, slightly quirky grandmother types. It is because of this I have to say I got quite a shock as I started to watch "Entertaining Mr Sloane" as seeing a busty Beryl Reid in a very short and see through dress is not some thing I ever expected to see. But then it is befittingly curious, comical and slightly uncomfortable which is very much the general vibe to "Entertaining Mr Sloane". But wait as whilst we have Mr. Sloane easily manipulating Kath due to her over excited nature we also have him flirting with her brother Ed who on walking in and seeing him lying on the bed in just white briefs takes a shine to him. And yes I never expected to see Harry Andrews playing it as a bit of a homosexual who in this case is pervy with his flirtations.
The thing about "Entertaining Mr Sloane" it is very much the surprise of these actors delivering lusty and delivering homo-eroticism which makes the movie. But there is more and as I said Dadda comes a cropper thanks to him recognizing Mr. Sloane. As to how this plays out well it is as comically curious as everything else in this movie as we have Mr. Sloane toying with both Kath and Ed.
What this all boils down to is that "Entertaining Mr Sloane" is a curious movie from start to finish which is both amusing and creepy. But in a way it is seeing Beryl Reid in a see through dress which ends up the most unsettling thing about the movie.