In Miss Austen, Cassandra Austen returns to Kintbury two decades after the death of her sister, Jane, determined to uncover a cache of Jane's letters that contain hidden secrets about both sisters. As she navigates the challenges of her surroundings, Cassandra must decide whether to reveal the intimate details of her life or protect her sister's legacy. This poignant tale intertwines memory and discovery, offering a fresh perspective on the life of a woman deeply connected to one of literature's most beloved figures.