Perry Mason (1957–1966)
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The Case of the Poison Pen-Pal 

Peter Gregson's aunt is murdered after she investigates a company leak that may involve Peter's old secretary, Karen Ross. Karen travels to San Francisco to see the aunt and, ultimately, is charged with her murder due to pen pal letters.



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Episode cast overview, first billed only:
Lt. Tragg (credit only)
District Attorney
Karen Ross
Douglas Henderson ...
Peter Gregson
Carl Holman
Wright King ...
Lee Gregson
Joan Tompkins ...
Florence Holman
Wilma Gregson
Ben Willoughby
Harry Jackson ...
Matt Clark
Inspector Wade


Just as they are about to merge with another company, Gregson Canneries sees its stock unexpectedly go up in price. This is bad news for the company and principal owner, Wilma Gregson, who tells president Peter Gregson to immediately go to Chicago and renegotiate the merger. Their company is nearly bankrupt and the rising price won't help. Wilma is convinced that someone leaked news of the merger and suspects Peter's former secretary, Karen Ross, who he was forced to fire due to leaked plans she put in a company car, supposedly on the orders of his alcoholic wife, in which the wife was killed. Also, Karen was involved heavily with Peter at the time. Peter is now a single parent and lives alone with his young daughter Sandra. When he learns that Sandra has leaked the merger information in letters to her pen pal, Paul Drake is brought in to investigate. Perry Mason is drawn into the case when Wilma Gregson is killed and Karen Ross is charged with her murder. Written by garykmcd

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Crime | Drama | Mystery





Release Date:

10 February 1962 (USA)  »

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Aspect Ratio:

1.33 : 1
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Did You Know?


[first lines]
Wilma Gregson: Sit down, sit down. Peter, the details of the merger between Gregson Canneries and Super Brands.
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User Reviews

And a child shall leak them
5 December 2012 | by (Buffalo, New York) – See all my reviews

The main guest star in the cast of this episode is Everett Sloane who plays the District Attorney in San Francisco where Perry Mason, Della Street, and Paul Drake go in this case. And it's quite a case with the leaking of the details of a corporate merger in the letters of a pair of young girl pen pals. Today it would be done with e-mails.

Kathryn Givney is the imperious old dowager who runs the company and she is furious about details of the merger being leaked so as to deflate her stock and destroy the company. She's the one who is killed and it's Patricia Breslin who is a former secretary to one of the employees who is accused.

But Givney is probably one of the least mourned for victims the Perry Mason show ever had. There is no shortage of alternate suspects who would like to have done this old bag in. Of course it's not Breslin, but let's say it's someone who was as ruthless as Givney was.

Sloane was a fine District Attorney, but he had no more luck than Hamilton Burger in Los Angeles going up against Perry Mason.

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