Olivia Winfield's story unfolds in the 1920s, as a young Jemima Rooper takes on the role of the protagonist, working in her father's office and eagerly awaiting the right to vote. The series delves into Olivia's intricate past, revealing the motivations behind her decision to confine her grandchildren in an attic.

The next episode delves into the mysterious past of the Dollanganger family, ...