In much the same way that I was convinced there was a missing Hitchcock film with one of Cary Grant or James Mason, which later turned out to be a Heinlein story called 'The unpleasant profession of Jonathan Hoag', I have been quite sure that there was a Beiderbecke story concerning a secret organisation that helped people disappear. Each time I attempted to re-watch one or other of them on one of the cable channels that live in the trackless wastes between BBC4 and Eurosport, it would somehow end up being the wrong one.
Yes, I know that thirty seconds with Wikkipeejah would have solved the mystery. That site is the textual embodiment of the encyclopaedically tiresome sorts who'll wittingly spoil a good story by going 'I think you'll find...' in an annoying and strangulated manner.
I'd describe that voice as 'adenoidal' but I don't know what that sounds like. It's shorthand for a sort of person, and one just flywheels the description.
Anyway.
One of the extras in the Beiderbecke DVD set is the precursor series Get Lost! This is the missing story.
Alun Armstrong plays
quercus with remarkable precision.
The odd thing about the not-Hitchcock is that I can see Grant (or Mason) standing in the sculpted grounds outside a modernist office building, discussing something or other with a professor-type and what I can only presume is the female lead. He is convinced he has not been there before, yet his companions are informing him of his work within.
Perhaps it is something horrible like The Fountainhead.