As noted in the opening credits, this episode is based on the Erle Stanley Gardner novel, The Case of the Negligent Nymph.

When going over the crime scene with Perry, Steve notes the body was surrounded by blood, it was a “real mess”. Someone did a great job getting the stains out of that carpet! DOD 05/10/22

At 15:39 on the 2013 Region 1 Paramount DVD, Baby Doll Diana is wearing reading glasses while typing her future best-seller. But at 04:03 she can easily read, without her glasses, the hand-written note from the bottle. Perhaps because the writing is larger? And her typewriter has elite type? (I see that Diana's aunt had time to write out 11 lines on the note, but didn't even include such info as the date and time that she wrote the note, Addison's family name, or the name of the ship.) Submitted by (lowercase, with a comma and period) masonite, 07/05/13.

Don Dubbins joins H.M.Wynant and Walter Burke in having appeared as suspects and prosecutors. DOD 03/26/19

TCOT Scholarly Scriptwriter Kudos to the scriptwriter--or to ESG, if this detail came from his novel!--for naming Diana's boat the Cerberus! The reference to the three-headed dog who guarded the gates of Hades, the Greek Hell, is subtle and clever. Not only is Fritz, the German Shepherd, a threat to Diana in the opening scene, he is a worse threat to his beloved owner, Helga, who is revealed as the killer by his "testimony" in court. Welcome to Hell, Helga! Submitted by JazzBaby, 6/21/2019.

Furore Teutonico apparently no longer fearing censure from the UN. PM was particularly rich in overwrought ethnics in its final season: Helga's outburst - MURDERERS MUST NOT GO FREE !!! - was the first of a smorgasbord featuring German, Italian, Cockney and go along, of course, with the overacting Americans. Notcom, 071019.