The Palaces weaves together three interconnected stories of love, chance encounters, and personal dreams. After a painful breakup leaves aspiring actor Mo-beom with no memory of the previous night, he unexpectedly reunites with an ex at Deoksugung Palace. Meanwhile, Chloe, a Korean-French traveler with a passion for film photography, explores Gyeongbokgung alongside a newfound companion. At Changdeokgung, a struggling film student facing an uncertain future decides to create what may be his final movie.