In the beginning, a newspaper with a headline containing the words "Prominent Attorney" can be seen. A sub-headline mentions Perry Mason and perjury. This appears to be a prop that was used in an earlier episode, The Case of the Sun Bather's Diary (1958), in which Hamilton Burger tries to charge Perry with perjury.
The original novel depicted an adoption racket in which Mr. Fargo was involved. That plot involves the production of the "real" mother of the child, who makes a demand for money to the adoptive parents and claims to be of Japanese descent. The parents are tricked into paying money to the gang to protect the adoption. Possibly because actual case files involving such gangs had been made into episodes of the TV shows Racket Squad (1950) and Public Defender (1954), this plot wasn't used for this episode.
A running joke is Della's bewilderment over how a restaurant could charge a dollar for a cup of coffee. If adjusted for inflation, that would be equivalent to about $10.50 in 2023.
Don Anderson, who made 129 small appearances in this series, appears here as two separate characters - a customer in the restaurant and a policeman at the fire.
The second episode in a row (after The Case of the Fugitive Nurse (1958)) where a witness testifies regarding a car parked at an airport.