Great episode! A "10" for the Cannon series - Excellent plot and story a great display of acting from a host of familiar characters from my youth. It brings back memories of California when I lived right there. (Shows great parts of California when there wasn't millions of houses covering every inch), I can't figure out if it's in the San Beradino Mtns., Calabasas or even the undeveloped parts of Bel Aire in some of the canyons along Mulholland Drive (lots of trees still left around there at that time)
Of course if you are a jack Cassidy fan like me, how can you go wrong? He always ads a certain touch of old fashioned class to any roll he portrays. He was great as an evil murderer or master criminal. He could also be very funny he did many guest appearances on every TV show of his day. My favorite one that comes to mind is an episode of GET SMART, where he played a decorator named "Mr. BOB", it's an absolute classic roll. I am prejudice though because I think that GET SMART was the best satire Comedy ever put together. Every actor was an intricate part, when they made the first movie it didn't have the Chief (he had died) and it really didn't have anywhere near the same zing.