![Chimera](https://image.chilimovie.com/public/en/300px/20211027/v16Q8DFQeEZ2vxkylS731WHQNLh.jpg)
Hyo Kyung calms Joong Yeop at Jae Hwan's house, and she learns about the whole truth behind the Chimera Case that happened in the past. Later, when Hyo Kyung meets Joong Yeop outside Jae Hwan's house, she notices a tail. She leads them right to Joong Yeop. As Jae Hwan rushes to help him, a bullet strikes Joong Yeop.
While being taken by the questionable investigators from the prosecution, Joong Yeop takes control of the situation and flees the scene. The police start to chase him down, but Joong Yeop sneaks a secret message to Eugene. She goes to the place Joong Yeop indicates in his coded message with Jae Hwan. When they meet, Jae Hwan ends up pointing his gun at Joong Yeop.
Joong Yeop claims that he assaulted people. He turns himself in at the police station, and a suspicious package is delivered to Chief Bae’s office. Meanwhile, the prosecution shows up and takes Joong Yeop to a remote mountain, even causing a car crash on purpose. They make him walk deeper into the woods at gunpoint until they arrive at a cliff.
Joong Yeop tells Jae Hwan that his mom’s memories from before the accident are coming back. He has suspicions about the fact that the accident occurred 35 years ago. Later on, Jae Hwan gets a phone call on the day of his mom’s next appointment. He finds out that Joong Yeop quit his job at the hospital and left the country.
Jae Hwan asks Chief Bae why Hahm Yong Bok got discharged 35 years ago, but Chief Bae becomes defensive and doesn't give him an answer. Meanwhile, Agent Hathaway finds suspicious things about Kang Sang Gu and keeps a close eye on him. However, Kang Sang Gu also has his eyes on her.
Jae Hwan and Eugene question the death of Lee Sang Woo that occurred 35 years ago. As they dig into the case file, they come across Bae Seung Kwan's name, the current chief of police at Joongsan. Slowly, the truth behind what happened 35 years ago becomes revealed through Seung Kwan and Hahm Yong Bok's conversation.
Without an attorney at his side, Joong Yeop agrees to get questioned by the police. Jae Hwan tries to get him to talk but ends up losing his pace. In Eugene's interrogation, he skillfully avoids answering any questions. Meanwhile, a call from Eugene's contact reveals his unexpected past.
Chimera incident, a serial murder and explosion crime that shook the year of 1984, takes place exactly the same thirty five years later in 2019. Just like the terrible explosion in the past, the murder of the crime is called Chimera, a monster in the Greek myth with the head of a lion, body as a goat, and tail as a snake that shoots fire through its throat.