Remember that episode that features Raymond doing the intro and then going home to his apartment only to get wrapped up in a murder mystery?
I don't remember what it was called but, for me, it emphasized how weird and contradictory the character Raymond is. Like, sometimes he's a a twisted, fiendish, ghoul or just a normal radio host, like Don Wilson.
I think Barry's observed the contradiction of Inner Sanctum in the past. Although I love it, they promise preternatural horrors and unimaginable terror but most often they turn into a Scooby-Doo type mystery that explains away any supernatural sources.