TV remake on Alfred Hitchcock
This wasn't mentioned on any other posts, so I wonder if any of you know that this story was remade/adapted for Alfred Hitchcock Presents series (season 1, 1955)
It was obviously shortened to acommodate the half hour time limitations, and some of the story details were changed quite a bit.
In the Alfred Hitchcock version, Victoria (played by Hitch's daughter Pat) is attending the Paris exposition with her Mother as chaperone. Like the original, the mother arrives feeling ill.
There is no Dirk Bogarde character, and it is the chief of police who helps Victoria unravel the mystery of the missing mother.
Also, she is sent across town to pick up a "special tonic" from a doctor referred by the hotel manager, and is detained there for most of the night.
The other difference is that the mother's room does not disappear, as in the original, but is completely transformed with different furniture, and different wallpaper...the latter being the tipoff to the inspector as to the validity of Victoria's story--I'll say no more, for those of you who haven't seen this version.
It's quite well done, and was my introduction to this tale years ago when I first saw it and found it pretty disturbing.
You can view it on DVD: Alfred Hitchcock Presents Season One. It's called "Into Thin Air".