Episode synopses track the shift from complicity to emotional attachment as the narrative engine, while key art foregrounds an intimate forehead-touching pose that visually centers the queer pairing and its subversion of Victorian class and gender expectations. This foundational focus on non-traditional sexual identity as the emotional core functions as a deliberate intrusion that subordinates historical storytelling to identity framing. Creator Sarah Waters' established body of work and explicit emphasis on lesbian historical fiction directly shapes the adaptation's intent, ensuring the central romance between the leads remains the premise's primary justification instead of incidental character detail. Although the series avoids modern lecture moments or DEI casting alterations, the pervasive reliance on the queer relationship as both plot driver and thematic priority still registers as prominent identity-focused content that compromises broader entertainment value by design.