Thirty-five years after an evil act is committed, those who want to find the culprit gather together to uncover the truth of the past.
EPISODE 1
Episode 1
When dozens of people are injured in an unknown explosion in the middle of downtown Seoul, Detective Jae-hwan heads to the scene to find out what happened.
EPISODE 2
Episode 2
Reporter Kim Hyo-gyeong, thinking that the series of explosions is related to the Chimera, visits Jae-hwan, who was injured in the fall.
EPISODE 3
Episode 3
When Joo-seok dies, a special investigation team is set up to uncover the truth of the death. Jae-hwan begins to be investigated just for being at the scene of the incident.
EPISODE 4
Episode 4
Joong-yeop does not give in to the pressure of Yu-jin's interrogation and avoids answering.
EPISODE 5
Episode 5
Seoryun Medical Center's legal team halts police interrogation of Joong-yeop, the primary suspect, granting him freedom. Back at home, Joong-yeop reflects on his past at the Macheon Police Department.
EPISODE 6
Episode 6
Jae-hwan and Yu-jin look back at the situation regarding Lee Sang-woo's death, and find that there are also suspicious circumstances.
Park Hae-soo
Lee Hee-jun
Claudia Kim
Cha Joo-young
Nam Gi-ae
Woo Hyeon
Kim Do-hoon
Lee Kyung-shik
Lee Jin-sik
Lee Jin-mae