The Portrayal of Incestuous Relationships and Scheming in Adaptations

They discuss the portrayal of an incestuous relationship in a short story and its adaptation into a TV show. They talk about the close bond between the brother and sister in the show, which was not explicitly portrayed as incestuous, but still seemed unusual. They also mention how the characters schemed and committed murder together, which is reminiscent of another famous dark story called 'The Cask of Amontillado'.