In 2014, she starred in the opposites-attract romantic comedy film The Plan Man, about a methodical, mysophobic librarian who falls for a spontaneous, adventurous musician. Following that, she played the dowager Queen Jeongsun in period film The Fatal Encounter, who is the fierce political rival of her step-grandson King Jeongjo. Han next reunited with The Fatal Encounter co-star Hyun Bin in the 2015 suspense series Hyde, Jekyll, Me, in the role of a circus master who falls for a theme park owner with split personality disorder.