Last episode with Perry’s arm immobilized. Submitted by Francis, 10 June 2011.
+ AND Perry also runs w/that arm sling when he hears Helen scream after finding the body in the car! Run Perry Run! ;-> submitted by mesave31, 01/29/15
++ AND this allows Della to serve in an unusual role: chauffeur. I believe there have been several instances where Della took the wheel from Perry, but I think this is the first where she took it in place of him. Submitted by Notcom, 052016.

The Eerily Empty Bookcase has been moved to Perry's office, apparently for the sole purpose of giving the Careless Kitten a perch from which to jump in the final scene.
In the version I just watched, immediately after Perry, Helen, and Gerald discover the body, Perry is shown on the phone calling the Shore house and asking for Gerald - he is then shown back at the car with Helen and Gerald.
Another episode with a good story undone by clumsy dialogue, exposition, and direction, as if done in a hurry. DOD 03/13/19

This is, indeed, unique in all the 271 PM episodes. Not only is the direction and the camera-work unprecedented - but a unique scene between Burger and Mason in Perry's office, discussing the case, ex party. This kind of personalization of Burger is rare, indeed. (TCOT Prudent Prosecutor, TCO Paul Drake's Dilemma, TCOT Lame Canary, TCOT Dead Ringer.) dwhite 1.20.13
+ IMHO Burger evidences a condesending attitude toward Della as he discusses the issues then glances at her and says that maybe he's saying too much. The look she gives him in return should be included in the "Della Looks On" site! jfh 23Feb2017.

The usually taciturn Sgt. Brice has as many lines in this episode as he ever had, few though they are. Submitted by francis, 3/8/12.

I liked the kitty cat. I'm surprised that no credit was given to the cat handler/trainer...
+ A day after I saw this episode on MeTV, I happened to see part of an episode of Mister Ed (probably episode 138, "The Horse and the Pussycat," OAD 10-31-65) on Antenna TV that featured what appeared to be the same cat! RIP, cat. Submitted by cat lover 65tosspowertrap, 1-18-2014.
++ I always think that too, RIP all the dogs and cats I see in old TV shows. RIP Monkey the Siamese. Submitted by cat lover DyNama, 2/19/2016

WEIRD REACTION (IMHO of course) by Helen, after Frank gets shot *inside the house* after opening a door, and she does not even look where the shot came from, help Frank, or even more...seemingly not worry that she will get shot next since the shooter is IN THE HOUSE and in the next room WITH A GUN!!! ;-> submitted by mesave31, 01/29/15
+ Other weirdness: When Perry and Paul accompany Thomas to his house, they all spend an inordinate amount of time outside instead of going in to check on Franklin. jfh 01Mar2018.

Continuity Error: When Perry, Paul and Thomas follow the floury cat prints to Thomas's kitchen, the lid is on the canister (interestingly labelled "Cookies"), but, when the kitten comes into the kitchen, suddenly the lid is no longer on the canister. jfh 05Jul2018.

Not a continuity error, as such, but, in the "confession" scene, Helen wears the same dress as she did in the opening scenes. jfh 13Mar2019

[Comments moved below Spoiler flag because of contents]

---in the book, there is a question of name switch in Florida, in which one man found a Doppelgänger; this occurred ten years prior to the story, and this created confusion as to who actually was now in LA. Of course, because the one was thought to be deceased, there could be no credible blackmail. Yes, it's weak, but in the book it's an okay line. cgraul 2.12.16

Continuity: When Matilda was chasing the cat after it jumped on the table her necklace mysteriously becomes unlatched in the front. Kilo 10/14/2018.

Notice the way Della flutters her eyelashes at Burger when she asks him "What if you find him murdered, too, Mr. Burger?". Cute. Kilo 10/14/2018.

Spoiler Warning! Do Not Read Below If You Have Not Seen The Episode

Cold case / old case: Perry also solved the murder of Franklin Shore - killed 10 years earlier. This was the final time Perry discovered clues from a past death. Submitted by H. Mason 9/27/14

Why wait ten years to get rid of the blackmailer? And what was to be gained by intimating Franklin was still alive? Seems to me it would be to Matilda's benefit to have him declared dead once and for all. DOD 03/12/19

Has anybody read the Erle Stanley Gardner work that inspired this episode? It's hard to imagine Mr. G would have such a major error in one of his stories. Anytime a blackmailer gets killed by the person paying, the story is flawed. Too many recent stories have had this mistake (#216, 226 and 228). In episode 229 a person attempting blackmail was killed immediately. That's the way it probably would happen. Why did it take so long in this story? Any smart blackmailer would have documents of the damaging information with another person to be given to legal authorities in case of death and the person paying must know about it. In the 1972 movie Super Fly a person who had something on a politician went to a crime syndicate and paid for a contract to kill the politician and his family if he died. In "Northern Explosion" a 1994 episode of Murder, She Wrote a blackmailer with "insurance" was killed by another person and the payer knew he had to leave the area right away. There are many other crime stories where a blackmail situation was presented in a more believable manner. Submitted by H. Mason 4/28/15
+ I disagree, H. Blackmailers count on the income, they don't want to share, they rarely tell anybody else they have something on the victim, and would be loath to put in writing the location of the blackmail material. Do blackmailers have friends, associates, or lawyers they can trust not to read the letter and cash in on it themselves? And perhaps kill the blackmailer to get rid of the competition? There's only 3 things to do about blackmail: Pay, somehow make the material worthless, or kill the blackmailer. The 2nd tactic is the only practical solution, and of course the other 2 are not recommended. Does anybody know of this old "deliver to authorities in case of my death" trick actually working? Authorities catching your killer after you've been murdered would be poor consolation. The blackmailer should warn the victim about the trick but not actually write it down. Submitted by DyNama, 11/3/2018