About halfway through the story, Hendricks offers to pay Lucia $2,300 to leave town. Soon afterwards, he plots the hijacking of electronic gear insured for $25,000. In 2021 terms, those amounts would be about $19,020 and $206,700, respectively. To put them into context in 1965, the base price of a new Rambler American 440 4-door compact sedan was about $2,200 and the average price of a new home was $13,600.
This is the first of three appearances Michael Constantine makes in the series, each time appearing as a different character. The other two appearances occur in A Taste of Tomorrow (1966) and The Judgment: Part I (1967).
This is the second of three appearances Geraldine Brooks makes in the series, each time playing a different character. The other two appearances occur in Ticket to Alaska (1963) and The Ivy Maze (1967).
This is the second and final appearance Jack Klugman makes in this series; each time, the character he plays is the owner of a business. His first appearance occurs in Terror at High Point (1963).