Voice of a Murderer

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.

• 
  Sul Kyung-gu

  Han Kyung-bae
• 
  Kim Nam-ju

  Oh Ji-sun
• 
  Gang Dong-won

  Kidnapper
• 
  Song Young-chang

  Captain No
• 
  Koh Soo-hee

  Cha Su-hee
• 
  Kim Yeong-cheol

  Kim Wook-jung
• 
  Kim Kwang-kyu

  Chief Detective
• 
  Yoon Je-moon

  Priest
• 
  Na Moon-hee

  Kyung-bae's Mother
• 
  Jeon Hye-jin

  Lee Ae-sook