• Air date: 18 Jun '21 14 episodes
      Two detectives teamed up to catch a serial killer who murdered their family. Moo Jin Hyuk's life spiraled out of control after his wife was murdered. He starts to put himself together after he meets Kang Kwon Joo, US-graduated voice-profiler, who lost her police father to the same serial killer. They work together on the 112 (emergency telephone number) call center team.
  • List of Episodes (14)
    • 1. Episode 1

      18 Jun '21
      Strange emails are sent to Kwon Joo. She thinks they’re just prank emails, but soon, she realizes the emails have been forewarning her of murders. She starts to track down who sent the emails. Meanwhile, Derek Cho, a detective from the U.S., is working temporarily in Korea. He has a younger sister who has a speech impediment, but she’s abducted and in danger.
    • 2. Episode 2

      19 Jun '21
    • 3. Episode 3

      25 Jun '21
    • 4. Episode 4

      26 Jun '21
    • 5. Episode 5

      02 Jul '21
    • 6. Episode 6

      03 Jul '21
    • 7. Episode 7

      09 Jul '21
    • 8. Episode 8

      10 Jul '21
    • 9. Episode 9

      16 Jul '21
    • 10. Episode 10

      17 Jul '21
    • 11. Episode 11

      23 Jul '21
    • 12. Episode 12

      24 Jul '21
    • 13. Episode 13

      30 Jul '21
    • 14. Episode 14

      31 Jul '21