During the opening scene, a page is broadcast for "Mr. Buck Henry, please claim your poodle at the baggage counter. Mr. Buck Henry, your poodle is waiting." Buck Henry is one of the creators of 'Get Smart'.
Max comments that no one knows what the CIA's budget is. For all practical purposes, that is correct; the CIA's budget is known only to its leadership, the President and a few members of Congress.
99 uses her red revolver for the first time in this episode.
The episode is a spoof of old detective movies with Smart moonlighting as a Sam Spade type detective. The KAOS agents are Mr. Peter and Mr. Sydney. However, the Peter Lorre look a like is Mr. Sydney, and Mr. Peter is a large Sydney Greenstreet type fellow.
Gordon Jump makes his final of 5 Get Smart appearances here.