Based upon a novel of the same name by Juanita Sheridan. The book - first published in 1953 - was the fourth and final story in a mystery series starring Lily Wu and Janice Cameron, who were essentially female equivalents of Sherlock Holmes and Doctor Watson.
First appearance of Mel Prestidge as Lt. Danny Quon.
Cricket sings the chorus of the Rodgers and Hart song Dancing on the Ceiling, from the 1930 Broadway show Ever Green.
First episode in which Moke is addressed by that name, though for a while it alternated between that and Marty.
A rare episode that breaks the fourth wall, as Kim delivers the final line to the audience.