After Gyeong-bae's son is kidnapped, he receives a call from the kidnapper asking for 100 million won. The detectives are teamed up for the case, yet the culprit gets away at every opportunity.
Voice of a Murderer is a 2007 South Korean crime thriller film written and directed by Park Jin-pyo, starring Sul Kyung-gu, Kim Nam-joo, Kim Yeong-cheol and Gang Dong-won. It was the third top-grossing domestic film of 2007, with 3,143,247 tickets sold. The story is a fictionalized account of the real-life kidnapping case of 9-year-old Lee Hyung-ho in 1991.
