This seems to have been the only Alfred Hitchcock production with an entirely female cast. None of the male adult characters are ever seen, just spoken about.
The McFarland Motel shown is actually the Universal Studio's Universal City guest artist bungalows, one of which was actually occupied by Alfred Hitchcock.
Gena Rowlands' second of three appearances on The Alfred Hitchcock Hour.
Alice Backes' first of five appearances on The Alfred Hitchcock Hour.