In its first incarnation, “Russian Doll” felt as close to complete as any TV show ever gets. With those first eight episodes, delving deep into the minds of jaded New Yorkers Nadia (Natasha Lyonne) and Alan (Charlie Barnett) and back out again, creators Lyonne, Amy Poehler, and Leslye Headland had achieved something truly heady, unnerving, […]