While I really enjoy "Barnaby Jones", the show does have a few faults. One of them is that too many plots are about people who know Betty. Friends, family, acquaintances...all of them are in dire peril whenever they meet Betty! And, many of them die, get hurt badly or perpetrate deadly crimes! It's such an overused trope that you can't help but think that Betty is a walking, talking bad luck charm! And, because it happened too often, "Deadly Sanctuary" already has a strike against it.
The show begins with Betty at home...alone. But there is a knock on the door and there's a woman outside who says her car broke down and she wants to come inside. Betty is naturally suspicious...especially since she sees someone moving around in the bushes. So, she tells the woman she'll just call the local service station and have them send help...a reasonable reaction. But it turns out that an evil rapist is outside and the woman is attacked. As a result, Betty feels a bit guilty...though based on how the woman had been acting, Betty seemed justified.
What follows is mostly bad. Betty decides that it's her responsibility to find the rapist...and she thinks that a man already in prison for rape did not commit the rapes, as the recent ones have the same m.o.. So, she does what any dimwit would do...try to set herself up as the rapist's next target. Now THAT makes a lot of sense!!
During the course of the story, you get to see Betty act like she's drunk...and it's about as subtle as a brick upside the head! Also, there is the odd fact that EVERY guy she meets in this episode is creepy and acts guilty...except for the real rapist!! Overall, a badly written episode that also employs the series' worst trope.... Betty in trouble.