Plots are driven by infidelities, motives, and evidence rather than identity politics, preserving the source material's focus on human secrets and detection through traditional whodunit structures. The primary progressive element is the race change for established recurring character DS Kate Miskin, played by Carlyss Peer as a woman of color in the first such portrayal, with explicit references to 1970s misogyny and racism she faces. This appears as a supporting layer of period-accurate police force challenges for women and people of color rather than a narrative driver. No source-material alterations occur for other characters, no LGBTQ+ focus exists, systemic oppression critiques remain non-central, and no creator activist intent statements are present, so traditional casting and plots continue to dominate overall.