If PATTY DUKE SHOW W/MURDER is what Castle wanted, then he succeeded.
It is probably not an accident nor is it unintentional.
It isn't Castle's best nor is it a masterpiece; just an effective B movie for its target audience.
That's okay with me.

Richard

"... little by little the look of the country
changes because of the people we admire."
dialog in HUD (1963)