While playing golf, Dr. Thomas keeps calling Bobby, who is caddying, by his full name "Bobby Jones". This is in reference to Bobby Jones, the most successful amateur golfer in history. In the 1920s and '30s he won the Open Championship three times, the U.S. Open four times, and the Masters once.
Guest stars Jim Broadbent and Emma Thompson are longtime friends of writer/director Hugh Laurie. He and Thompson dated while they were both students at Cambridge.
Patrick Barlow, who guest stars as Wilfred Bragge, has written an adaptation of the novel in the past, as an episode of the series Marple (2004). Unlike Hugh Laurie's generally faithful screenplay, Barlow's version was notable for not only adding Miss Marple to the story, but it also only loosely followed the book's structure and altered many of its key aspects.
Just over a month before the series got its first UK network showing in 2023, Bob Goody, who played Ted Miller, passed away. ITV added a dedication to him at the end of this episode.
The music playing in the opening scene is "Midnight, the Stars and You," made famous by its use in Stanley Kubrick's The Shining (1980) wherein it was played in the ballroom and closing scenes of that film.