Set in London in 1850, The Doll Factory tells the story of Iris, who paints dolls for a living alongside her twin sister, Rose, and dreams of becoming an artist and by night secretly paints herself naked. Silas is a taxidermist who owns a shop filled with his creations. He dreams of one day finding an item so unique he will be catapulted to fame. Louis is a painter and member of the Pre-Raphaelite Brotherhood, searching for his next muse. When Iris meets Silas, and then Louis, she is offered an opportunity to escape and start a new life. To do so, she must abandon her sister, sacrifice her reputation, and launch herself into the unknown. But as Iris' world expands, a story of dark obsession begins to unfold.