Mystery Mile

I remember watching Albert Campion mysteries on television when I was young (1990), but I don't remember much anything about that, except that Peter Davison played Albert. I don't get that idea from the books :-D
I like these, another clever, fashionable mystery novel written in 20s-30s. I like the fact that Albert Campion isn't a garystu :-D (Though Lord Peter Wimsey wasn't either X-D “His long, amiable face looked as if it had generated spontaneously from his top hat, as white maggots breed from Gorgonzola.”)
I didn't see the twist coming.
A bit racist, but on the other hand, it's hard to find anything written in early 20th century that isn't racist.