Secretly, Greatly
"Secretly, Greatly" is a South Korean film released in 2013, directed by Jang Cheol-soo. The story follows a North Korean spy, played by Kim Soo-hyun, who is sent to South Korea to gather intelligence. He assumes the identity of a simple-minded village idiot while secretly preparing for his mission.
The film blends action, comedy, and drama, exploring themes of identity and loyalty. It also features Park Ki-woong and Lee Hyun-woo in supporting roles. "Secretly, Greatly" was well-received for its engaging plot and strong performances, becoming a box office success in South Korea.