"Detective K: Secret of the Lost Island" is a South Korean film that combines elements of comedy and mystery. It follows the adventures of Detective K, a clever investigator in the Joseon era, as he uncovers a conspiracy involving a lost island. The film features a mix of humor and action, appealing to a wide audience. In his quest, Detective K is joined by his loyal assistant, Seo-pil, as they navigate through various challenges and encounters. The story unfolds with intriguing twists, showcasing the duo's determination to solve the mystery while highlighting the cultural backdrop of historical Korea.