Set in year 1999, the drama centers around a police detective who is investigates a strange murder case in a small local town, and a lady who has to find her missing niece. The two people get involved in a incident and confront at errorist, and dig into the secret of an unidentified recording tape.
A few days after the Cheonyang Filtration Plant incident, Cho Kyung-ho escapes from the institution. Hyung-in and Jung-hyun promise to meet up and go look for Kyung-ho together, but she doesn’t show up. She only leaves an address for Hyung-in. When Hyung-in gets there, he sees something he did not expect to see.
Jung-hyun joins Youngjingyo as the next heir who will replace Jae-young. Watching those inside who are merely waiting to face their death, Jung-hyun comes to the conclusion that she needs to take extreme measures. Meanwhile, Kyung-ho, after the release from the prison, pays Kyung-sook, his mother, a visit before the last phase of the experiment. Hyung-in at the same time realizes the intention behind Kyung-ho’s message.Watch Now:Amazon
A murder takes place on an evening in the pouring rain, and Cho Jung-hyun, who has just returned to her hometown after 12 years, realizes that Cho Jae-young, her beloved niece, has gone missing. Meanwhile, Choi Hyung-in, the detective in charge of the murder case, finds out that there is a relationship between the missing girl and Cho Kyung-ho, the culprit who’s been charged and imprisoned for committing the Saju Station Gas Terror Attack.Watch Now:AmazoniTunes
Hyung-in hears from Jung-hyun that she saw Jae-young at the place where Youngjingyo believers hold their rite. When Hyung-in meets Kyung-ho at the prison, he hears something shocking. Meanwhile, Jung-hyun is taken by mysterious men and meets Im In-gwan.
Hyung-in heads to the Cheonyang Filtration Plant to stop the disaster that is about to occur in Saju. But he becomes tied up by the Youngjingyo believers. There he hears that another gas terror attack that’s similar to that of 1987 is about to take place. The people in Saju start to flock around the filtration plant as if they’re possessed by something.Watch Now:iTunes
By sacrificing herself, Jung-hyun shows the believers that what the proxy is saying is wrong, and the Youngjingyo believers change their minds. Meanwhile, Jae-young follows In-gwan to the Youngjingyo building to save her aunt, and Hyung-in goes to Kyung-ho who is waiting for him. When they meet, Kyung-ho makes a final offer to Hyung-in that can put an end to this long experiment.
Hyung-in and the police start the investigation to find Jae-young. Hyung-in meets Jae-uoung’s school friends and they tell him about a tape. Hyung-in finally obtains the tape, but a creepy and weird sound comes out from the tape. Meanwhile, Jung-hyun also tries to find Jae-young on her own. At places she visits, she gets to see some strange patterns. She knows that she has seen the patterns before, but don’t remember what they are.Watch Now:AmazoniTunes
Due to an explosion, Hyung-in’s partner Si-jeong gets injured, which devastates Hyung-in. This makes him drop the case. However, a key suspect of Jae-young’s case, Kim Hwan-kyu turns himself in. Jung-hyun hears from Jae-young’s friends that Jae-young had sent them a message a month before Kim Hwan-kyu turned himself in, and this makes Jung-hyun believe that Jae-young is still alive.Watch Now:iTunes
Jung-hyun turns down In-gwan’s offer and starts looking for leads with Yong-tak again. Meanwhile, Hyung-in is put in a tough spot as Kim Hwan-kyu tells the press that he was tortured during the investigation. Hyung-in also hears a rumour that there’s a video tape named “Mixed Tape” circulating in Saju City and that those who watched the video are saying strange things.
Jung-hyun is kidnapped and forced into a mysterious ritual. She realizes that Jae-young is not dead and is held by the people of Youngjingyo. The man who works as a representative of Youngjingyo reveals a shocking truth behind the 1987 terror attack. Hyung-in also realizes that he’s been surrounded by Youngjingyo for a very long time.Watch Now:AmazoniTunes
Hyung-in tries to find leads to Cho Jae-young’s case by listening to the cassette tape where mysterious sounds are recorded. When a drug addict’s body is found at the port, Hyung-in realizes that this case is related to a drug ring. Meanwhile, Jung-hyun finds a videotape she watched with her high school friends. The content is so creepy and mysterious but it’s even more strange that no one remembers watching it.Watch Now:AmazoniTunes