I actually find this one pretty entertaining. It's another episode filmed in the mountains. A popular location for a lot of crime shows back then . A break from the city.
It's an old plot used by a lot of crime shows at the time, Decades earlier a woman gets pregnant by a man who marries another woman Diane played by Vera Miles . Instead of blaming the man the abandoned pregnant woman blames Diane for that and the man's death.
Mother and son plot against Diane even using her visiting niece so David can get close to Diane. A doctor who might know too much is quickly murdered and Barnaby and JR start investigating. Another limited episode for Betty.
Another twist comes when David seems to know things only Diane's dead husband would know . Diane is gullible and that and the plot against her temporarily comes between her and her niece.
Yes there is some overacting in the reveal but I think it works because they were both kind of deranged.
It's an old plot used by a lot of crime shows at the time, Decades earlier a woman gets pregnant by a man who marries another woman Diane played by Vera Miles . Instead of blaming the man the abandoned pregnant woman blames Diane for that and the man's death.
Mother and son plot against Diane even using her visiting niece so David can get close to Diane. A doctor who might know too much is quickly murdered and Barnaby and JR start investigating. Another limited episode for Betty.
Another twist comes when David seems to know things only Diane's dead husband would know . Diane is gullible and that and the plot against her temporarily comes between her and her niece.
Yes there is some overacting in the reveal but I think it works because they were both kind of deranged.