In a slight change to the style of the incidential music score for the series, in this episode its more of a brass band style, similar to the music that would have been regularly heard at the seaside, as featured in the episode, in a bandstand setting.
All three Cusack sisters appeared in episodes of Poirot: Sinéad Cusack in Dead Man's Folly (2013), Sorcha Cusack in this episode, and Niamh Cusack in The King of Clubs (1989).