They dramatized a lot of great stories - Roald Dahl, of course, but in subsequent seasons, there was Saki, O. Henry and others who wrote the tale-with-a-twist short stories. I can recall some of the episode names, “Vengeance is Mine, Incorporated,” but I recall the episodes themselves more generally, like the one
where the guy who lives with his mother and is committing these ghastly murders in their house winds up at the end (as we discover) has been getting her assistance all along or the one with Peter Cushing as the art dealer, or the one which took place in the tropics about the malaria epidemic or something like that. Also, the US version had an opening sequence different than the British one: a rotating carousel, as opposed to the dancing Karen Standley.
Wish they would put this series on DVD - I’d buy the whole set!