i enjoyed this one and was glued to it . i probbably looked a bit strange gazing off into space while at work. maybe i didn't look much different than i usually do. :lol:
i've seen this theme in several sci fi shows. star trek classic for one.
i liked the idea of not knowing if mr. M was sane or not. i think maybe he was not mostly because there was no physical description of the Horla.

the one man acting alone is also exciting to me. Invasion Of The Body Snatchers comes to mind.
the sound of the Horla wasn't scary enough to me.

the acting was good in this one. accents were believable to me. tho the doctor didn't have a french accent did he? i've listened to 2 shows set in Paris in the last 2 days. i can only take so much!