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When a formerly brilliant, now seemingly senile inventor is murdered in his workshop, investigators are stumped. It appears as though nobody could have come in or out of the workshop during the period in which the murder must have taken place. It's a classic locked room puzzle for Ellery and the Inspector.
Ed McMahon, who plays the murder victim in this episode, was the long time sidekick to Johnny Carson on The Tonight Show.
Dorothy Malone won an Academy Award for Best Supporting Actress for her performance in Written on the Wind.
Dick Van Patten is best known for his role as family patriarch Tom Bradford on the ABC drama Eight is Enough.
Arthur Godfrey had his own variety show on CBS for many years.
Inspector Queen: (to Sitwell) I believe you're going to learn the solution to your employer's murder.
Lorelei: (to Ellery) You're very nice but sometimes you don't make much sense.
Inspector Queen: In other words, Ellery, nobody could have killed Lamont Franklin but somebody did.
Ellery: (about the workshop) Wow! That's some layout.
Sitwell: I am an executive not an inventor.
Ellery: Where's the bacon?
Inspector Queen: At 29 cents a pound it's still on the pig.
Ellery: Did you see the Wall Street financials?
Inspector Queen: Are they covering murders these days?
Ellery: I think Carmichael's story's so bad it just might be true.
Inspector Queen: Son, when it comes to women you'd better leave character analysis to your old man.
Sitwell: Sorry, I can't help you.
Inspector Queen: Sorry, I don't believe you.