Also, have to disagree with Eric, the 39 Steps by Hitchcock is an awful adaption. I am curious what his opinion of Charade, which seems like a Hitchcock movie, but is not.

I have every reason to believe what you say about Hitchcock’s weak adaptation skills. Regarding other versions of the story, the lodger in the 1932 film is a much better character and despite the overacting typical of the early film era, the ending is pretty good.

Check out his pilot for Once Upon a Midnight where he attempts to adapt Malice Aforethought into a half-hour format and bungles it, leaving the story incomplete. It seems to be a recurring problem he had. Thankfully, when he moved into television, he evidently hired staff who helped him solve his pacing issues. Or perhaps he was simply never comfortable in an audio-only medium.

(but as David pointed out, we have a pretty good adaptation of the Lodger via Mystery in the Air, or the Hollywood Star Time adaptation of the film with Vincent Price)

I wasn’t sure I could do it, but I undid the vote in case you want to choose a different option. I’m so excited I have the power to rig these votes!