In 1814, Regency-era London, Mary Wollstonecraft-Godwin is a 16 year old aspiring writer working in the bookshop of her father, renowned writer William Godwin, now re-married to Mary Jane Clairmont after the passing of his first wife, philosopher Mary Wollstonecraft. Mary Jane’s daughter, Claire Clairmont and Mary have become close stepsisters. Whilst visiting Scotland at the house of one of William’s friends, Mary meets the 21 year old poet, Percy Bysshe Shelley, and an instant attraction sparks between them. Returning to London a little time later, Mary unexpectedly meets Percy again when he appears at her house, asking William to take him on as an apprentice. Fascinated by Percy, Mary begins a bohemian and torrid relationship with him, despite the opposition of her father and her stepmother, especially after they discover Percy is married with a daughter whom he supports but no longer loves. Determined to be free and live on her own terms, Mary flees with Percy to live together, accompanied by Claire, who wants to get far from her abusive mother. Their initial happiness turns to tragedy through debts and poverty, in addition to the terrible loss of Mary and Percy’s daughter, who dies after only a few months. Broken by suffering and pain, as well as a season living with the eccentric hedonist Lord Byron and doctor John Polidori, Mary turns into a shadowy being, becoming more and more obsessed with the idea of resurrecting the dead. All these events will lead Mary to find her own voice and exorcise her innermost demons by writing “Frankenstein; or The Modern Prometheus”. Prejudices of the times cause the novel to be attributed to Percy Shelley, forcing Mary to fight to claim the novel as her own.