As the car drives across the bridge toward the police station, Kang looks out the window. He sees the Han River. He sees the spot where they pulled out the body parts. And then, in a flashback, he remembers an earlier conversation with Lee Sung-ho about the most painful way to die.
: Played by Sol Kyung-gu, a seasoned forensic doctor desperate to save his child. Lee Sung-ho korean movie no mercy 2010