A minor problem I've noticed in some of the early "Perry Mason" TV episodes is that the writers didn't really understand what exactly lawyers do. Perry was a lawyer who defended folks up on murder charges....yet in some episodes he's ALSO practicing corporate law (1.02) and here he appears to be dealing with divorces and marital infidelity! Unless you are a tiny town lawyer or practiced long, long ago, lawyers would NOT have branched out into all these areas....it would be like a brain surgeon ALSO doing psychiatry or plastic surgery!!
When the story begins, Perry and his client are looking through binoculars at the lady's husband with his bimbo. A bit later, Perry attends a stockholders meeting in which the husband and bimbo are attending...so now, in addition to practicing family law he's also some sort of corporate lawyer as this is a stockholder's meeting! And, in behalf of the wife, he ends up ruining the scheme the mistress and husband have cooked up to explore for oil.
As far as the wronged wife is concerned, while her husband is a jerk, she inexpicably says she wants him back....and she STILL loves the guy! She goes so far as to say that when he tires of the mistress, she'll be waiting for him to return to her! However, when a man standing next to the wife is shot and killed, immediately police think she was the killer...and it's up to Mason to solve this odd case.
There are a lot of problems with the plot in this one apart from Mason practicing all sorts of law. He encourages the accused to create a false alibi (which could have gotten him potentially disbarred) AND the entire episode hinges on someone on the witness stand incriminating themselves and someone else...this solving the crime with a 'Perry Mason moment'. In other words, a completely unrealistic solution, as folks is real life almost never admit to a crime on the witness stand! Overall, enjoyable but very weak due to the writing.