Portrait of a Lady on Fire

At the end of the eighteenth century, Marianne, a young painter, is teaching painting lessons. One of her students asks her about a painting of hers, which Marianne calls "Portrait of a Lady on Fire". Years prior, Marianne arrives on an isolated island in Brittany. She had been commissioned to paint a portrait of a young woman named Héloïse before Héloïse is married off to her dead sister's ex-fiancé. Her sister threw herself off of a cliffside before Marianne's arrival. Marianne is informed that Héloïse has previously refused to sit for portraits as she does not want to be married. Marianne acts as Héloïse's hired companion to be able to paint her in secret, and accompanies her on daily walks to memorize Héloïse's features.