1880. Adelaide Thom opens a tea shop with another young woman who feels it's finally safe enough to describe herself as a witch, Eleanor St. Clair. Together they cater to Manhattan's high society ladies, specializing in cures, palmistry and potions--and in guarding the secrets of their clients. Then Beatrice Dunn arrives seeking employment. While Beatrice soon becomes indispensable, she sees things no one else can see, hears voices no one else can hear, and objects appear out of thin air for her. Has she been touched by magic or is she simply losing her mind? Eleanor wants to tread lightly and respect the magic, but Adelaide sees a business opportunity. Amidst the witches' tug-of-war over what's best for her, Beatrice disappears. As Adelaide and Eleanor begin the search for Beatrice, they're confronted by accusations and spectres from their own pasts.