Miss Austen takes a literary mystery – Cassandra Austen notoriously burning her famous sister Jane's letters – and reimagines it as a fascinating, witty and heart-breaking story of sisterly love, while creating in Cassandra a character as captivating as any Austen heroine.

The drama begins in 1830, a while after Jane has died. Cassandra races to see her young friend Isabella who is about to lose her home following her father's death. Cassandra is ostensibly there to help her friend, but her real motive is to find a stash of private letters which, in the wrong hands, could destroy Jane's reputation. On discovering them, Cassandra is overwhelmed as she is transported back to her youth. In flashback, we meet Young Cassy and Jane as they navigate the infatuations, family feuds and dashed hopes which shaped their lives and laid the foundations for Jane's unforgettable stories. Cassandra's re-evaluation of her past eventually leads her to realise how blind she has been to the real cause of Isabella's heartache and distress. Finding a way to guide Isabella towards true happiness, Cassandra is finally able to understand and celebrate the sacrifices she chose to make for her brilliant sister, Jane.