The Blackhouse unfolds on a remote Scottish island, and it integrates two narratives: a man grappling with past actions and a bipolar woman investigating a historical murder. The novel combines supernatural elements, suspense, and deep character studies. Carol shares insights on the eerie setting of the Outer Hebrides, her inspirations, and the process of writing complex, multi-faceted characters. She also touches on her journey as an author, her past work, 'Mirrorland,' and hints at her upcoming book. The episode emphasizes the atmospheric settings and richly layered plots that Carol is known for.