Russian Doll is a comedy-drama television series that follows the story of a cynical New Yorker named Nadia who finds herself caught in an endless loop of attending her own birthday party and dying in various ways. As she repeatedly relives the same night, Nadia explores the depths of her own mortality and attempts to unravel the mystery behind her predicament. With its dark sense of humor and thought-provoking narrative, Russian Doll offers a unique and compelling exploration of existential themes.