In a dark and twisted version of Victorian England, Joanna Wilder moonlights as an unsanctioned apothecary who treats the ailments of her fellow citizens. But there is no cure for her sister's waywardness. When irresponsible Eva disappears five days before her government-arranged wedding, Joanna risks her life and reputation to search for her sister in the treacherous streets of Londo City. She is determined to see Eva married off. Only then will...