From The Perry Mason TV Show Book (Revised)
After Cal Leonard (Michael Parks of Then Came Bronson) is caught climbing the fence at Otis Industries, he tells the police to get Joe Doyle, a local attorney, to help him. But Doyle died two months before, so his widow—Constant Doyle, played by Bette Davis—who is also a lawyer, arrives to defend Cal instead.
For some reason, Lawrence Otis is a little too ready to drop the charges against young Leonard, and Constant Doyle is puzzled.
Constant gets a second crack at defending Cal, who can’t seem to stay out of trouble these days. He is charged with murdering his cousin. She gets her nose rubbed in the dirt when she digs for evidence and finds some very distressing news about her late husband.