In the 1890s, Josephine Balsamo, a.k.a. Countess Cagliostro, is poised to take over the powerful crominal conspiracy known as the Black Coats. One person stands in her way: Irina Putine, a female detective, who happens to be the half-sister of Ars ne Lupin, the notorious gentleman-thief Sisters of the Shadows recounts the brutal vendetta between these two women, a merciless decades-long war which involve the greatest gunslingers of the American West,...