A top detective is reunited with a childhood friend who has since become a leading criminal profiler. Can they join forces to stop a serial killer?
Season 1
Every Child's Story Begins with Their Parents
S1E1 / 22 Jun 2015
Hello, Monster
S1E2 / 23 Jun 2015
Thou Shall Not Kill, But...
S1E3 / 29 Jun 2015
The Suspect, Lee Hyun
S1E4 / 30 Jun 2015
Borne Back Ceaselessly into the Past
S1E5 / 06 Jul 2015
The Blood of a Murderer
S1E6 / 07 Jul 2015
Let's Be Partners?
S1E7 / 13 Jul 2015
Remember Me
S1E8 / 14 Jul 2015
Stalker S
S1E9 / 20 Jul 2015
Find Me
S1E10 / 21 Jul 2015
Birth of a Monster
S1E11 / 27 Jul 2015
If I Had to Kill Somebody...
S1E12 / 28 Jul 2015
What Choice Would You Make?
S1E13 / 03 Aug 2015
Lee Joon-young's Room
S1E14 / 04 Aug 2015
Is a Happy Ending Possible?
S1E15 / 10 Aug 2015
I Remember You
S1E16 / 11 Aug 2015
Seo In-guk
Lee Hyun
Jang Na-ra
Cha Ji-an
Park Bo-gum
Jung Sun-ho/Lee Min
Lee Chun-hee
Kang Eun-hyuk
Choi Won-young
Lee Joon-ho/Lee Joon-yeong
Im Ji-eun
Hyun Ji-soo
Min Sung-wook
Son Myung-woo
