S1, E4: Kang-ho realizes that Jang Min-gi is not the serial killer, but the higher-ups decide to exclude him from the investigation. Kang-ho teams up with Mu-young yet again, and they discover the link between Teddy Jung and Tak-won.

S1, E4: Kang-ho realizes that Jang Min-gi is not the serial killer, but the higher-ups decide to exclude him from the investigation. Kang-ho teams up with Mu-young yet again, and they discover the link between Teddy Jung and Tak-won.