My sister's shadow

England 1904. Mirror twins Adelaide and Victoria have spent their lives in orbit of each other– doomed to be in the other's shadow, their lives are intertwined and inextricable as each other's identical inverse. Adelaide is dutiful and reserved, happy to remain in her childhood home, Harewood Hall, forever. Victoria wishes for a thrilling life, exploring the world and finding a great romance–but the twins cannot live apart. Visiting Lord Stanley bewitches Victoria with his talk of a life of luxury in New York, but it is obedient Adelaide whom he marries against her will and to Victoria's fury. Together, they all move to New York and begin a new life. Adelaide finds herself trapped in a gilded cage on Fifth Avenue with no one but her angry and tempestuous twin for company. Amid the glamor of the upper class, Adelaide is captivated by the independent and educated women of the elite social circle Mrs. Astor's 400. As Adelaide's star rises, tensions begin to surface between the sisters, and as Adelaide grows apart from her twin for the very first time, Victoria descends into a rage-fueled darkness that threatens everything and anyone standing in her way.