This time roles are reversed as Jack Kelly makes an uncredited cameo in a vignette at the beginning of the episode to introduce a Bret-only story. He also provides the episode's voiceover narration.
Mary Roberts Rinehart (1876-1958) is considered to be the source of the phrase "the butler did it" from her novel "The Door" (1930).
Homer Eakins' uncompleted still life suggests several Cezanne paintings of rather better quality.