August 20 is National Radio Day.
Mysteries and Old Time Radio have a long and brilliant history. Here is an article from
Old Time Radio Catalog.
Horror and Mystery Old Time Radio Shows
Radio is the ideal medium for horror and mystery entertainment. In the mind’s eye, old time radio horror and mystery shows can conjure the most frightening of scary sensations. With sound effects, good timing, and the power of suggestion horror and mystery in classic old time radio created some of the scariest and most memorable horror productions in history.
In many ways, horror radio shows differ from horror in film. In film, when the monster or antagonist is shown, it diminishes its veracity–especially if the monster suit looks fake or silly. Images that the listener pictures in his own mind-eye are often scarier than what a make-up artist or producer deems as visually frightening.
Another reason why radio is scarier than film is lighting and perspective. If we see the person stuck in a pitch black haunted house or stuck in a coffin, the fear is slightly diminished. If we picture ourselves stuck in a dark room or coffin, the intensity of the fright is much more genuine.