Voice of a Murderer (Hangul: 그놈 목소리; RR: Geunom moksori; lit. "His Voice") is a 2007 South Korean crime thriller-drama film written and directed by Park Jin-pyo, starring Sol Kyung-gu and Kim Nam-joo. It was the third top-grossing domestic film of 2007, with 3,143,247 tickets sold. The story is a fictionalized account of a real-life kidnapping case in 1991.