Carla Chaney is in jail awaiting her trial for murder. She has fired or lost multiple attorneys so Perry is given her case. She tells him about proof she didn't commit the murder but even Perry has a hard time believing her story.



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Episode cast overview, first billed only:
Dan Tobin ...
Leona Devore
Jean Hale ...
Carla Chaney
Dr. Durwood Tobey
Peter Stange
Roan Daniel
Cho Sin
Mickey Manners ...
Lenny Linden
Shirley O'Hara ...


While watching a gala event on TV, jail inmate Carla Chaney who has a lengthy criminal history sees the woman who she is certain committed the crime she's being held for. She also hears the distinct and high pitched laugh she heard the night of the murder. Carla is being held pending her trial for murdering Gerald Havens, an earlier boyfriend, but maintains she is innocent. The woman she saw at Havens' house is Leona Devore, the very rich owner of the Devore galleries. Leona claims to have been out of the country and then in Hawaii when Havens was killed. When shown photographs of people at the event however, Carla initially picks out gallery employee Cho Sin, not Leona, as the woman she saw. It all creates doubt in Perry's mind and friction with his client who feels no one is taking her side. Correctly identifying the owner of that unique laugh and Perry's knowledge and research on Asian artifacts are central to Perry solving the case and finding the real killer and the reason for ... Written by garykmcd

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Crime | Drama | Mystery





Release Date:

12 September 1965 (USA)  »

Company Credits

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Technical Specs



Sound Mix:

Aspect Ratio:

1.33 : 1
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Did You Know?


The murder takes place before the episode starts. There would be three such episodes in Season Nine, more than in any other season. See more »


When Perry enters the room where Carla is being restrained in jail after her outburst in the TV room she has a folded sheet over her torso and arms. In the next shot, her arms are no longer under the sheet. See more »

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User Reviews

The tell tale laughter
7 April 2012 | by (Buffalo, New York) – See all my reviews

A hard and bitter Jean Hale locked up in LA County Jail for a murder she didn't commit while watching television sees the woman she thinks did the crime and hears the same maniacal laughter she heard that night. After getting out of solitary from the riot she started, Hale finds she has a new attorney in the person of Perry Mason. That should tell you right away she didn't do it.

The whole thing in this episode is identifying that same rather unique laugh and during the course of the investigation Raymond Burr and William Hopper run into Professor John Abbott who happens to be a speech pathologist. His expertise becomes invaluable.

The murderer and the laughter are identified. But wait till you see what the solution was. Rather intriguing for this episode of Perry Mason.

9 of 10 people found this review helpful.  Was this review helpful to you?

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