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Season guide

The Good Detective: Season 1

16 episodes Premiered Jul 6, 2020 Updated Jul 31, 2026

The Good Detective is a South Korean television series. It is a drama that revolves around the pursuit of truth. The series stars Son Hyun-joo, Jang Seung-jo, Lee Elijah, Oh Jung-se, and Ji Seung-hyun. The story involves a veteran detective partnering with a young colleague to investigate a five-year-old murder conviction. This partnership is driven by doubts about the original conviction. The series falls under the

Season overview

The Good Detective is a South Korean television series. It is a drama that revolves around the pursuit of truth. The series stars Son Hyun-joo, Jang Seung-jo, Lee Elijah, Oh Jung-se, and Ji Seung-hyun. The story involves a veteran detective partnering with a young colleague to investigate a five-year-old murder conviction. This partnership is driven by doubts about the original conviction. The series falls under the genres of crime, drama, mystery, and action and adventure.

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Episodes

S1·E1

The Murder Case From Five Years Ago

Jul 6, 2020 · 64 min

On their first day as partners, detectives Kang Do-chang and Oh Ji-hyeok pick up a series of calls with perplexing connections to a closed murder case.

S1·E2

No Sinner Shall Sleep Peacefully At Night

Jul 7, 2020 · 63 min

Words get out of Incheon Seobu Police Station revealing that Lee Eun Hye, the daughter of a murderer Lee Dae Chul, has been kidnapped, murdered, and buried by a man who claims to b

S1·E3

The Execution

Jul 13, 2020 · 65 min

The execution of death-row convict Lee Dae Chul nears as well as the evaluation for Do Chang’s promotion. Knowing that Lee Dae Chul has an alibi at the time of the murder, Do Chang

S1·E4

We Are Only Humans

Jul 14, 2020 · 67 min

A big body of corruption sweeps over Violent Crimes Unit Two with the higher-ups continuously pressuring them to turn a blind eye to Lee Dae Chul’s case. Meanwhile, Ji Hyuk saves S

S1·E5

We Are Trying To Save A Person’s Life

Jul 20, 2020 · 64 min

While clues proving a corruptive body’s close relation to Lee Dae Chul’s case pile up, Do Chang figures out a work-around to carry out a secret investigation on Jo Seong Dae. On to

S1·E6

Not Everyone Is Self-Centered

Jul 21, 2020 · 66 min

Do Chang confesses to Eun Hye that he wants to save her father, Lee Dae Chul. Unfortunately, Eun Hye can’t trust Do Chang who literally handcuffed and arrested her father for a mur

S1·E7

Every Truth Has Two Opposing Stories

Jul 27, 2020 · 64 min

Although Do Chang and Mr. So prepare for the retrial of Lee Dae Chul’s case, Do Chang still needs to persuade Dae Chul to follow his lead because he is reluctant to take part in it

S1·E8

Do Chang on a Witness Stand

Jul 28, 2020 · 63 min

It was already difficult enough for Do Chang and others to get a retrial approved. However, feeling desperate during the trial, Dae Chul falsely admits to his killing of Detective

S1·E9

A Voice Recording of Superintendent Moon

Aug 3, 2020 · 66 min

After losing at the retrial, Do Chang gets demoted. With Do Chang out of the picture, Violent Crimes Unit Two also feels pointless to even fight for a comeback. Meanwhile, Ji Hyuk

S1·E10

The One Behind Jo Seong Dae

Aug 4, 2020 · 63 min

Do Chang gets reinstated and returns to Violent Crimes Unit Two after coming to an agreement with Superintendent Moon. The team then focuses on Park Gun Ho’s case and stumbles upon

S1·E11

Do Chang Goes After Oh Jong Tae

Aug 10, 2020 · 66 min

With the help of a little stunt pulled off by Jae Hong, Do Chang gets one step closer to proving Oh Jong Tae’s crime. Meanwhile, Ji Hyuk barges into Yoo Jeong Seok’s office, asking

S1·E12

You Can't Die Just Yet

Aug 11, 2020 · 65 min

While Ji Hyuk manages to survive the ambush by Oh Jong Tae, the prosecution adds more pressure to Do Chang and his colleagues, invalidating their efforts to bring Oh Jong Tae down.

S1·E13

The Remains Of A Dead Body Near Gawol Church

Aug 17, 2020 · 66 min

Jin Seo Gyeong hosts a secret meeting with Yoo Jeong Seok and Kim Gi Tae at Gawol Church, demanding them the truth regarding a missing person named Jo Seong Gi. In the meantime, Do

S1·E14

Those Who Deserve To Die

Aug 18, 2020 · 67 min

Even after the arrest, Oh Jong Tae still has the audacity to claim his innocence and goes on to emphasize the incompetence and corruption of the police organization. Meanwhile, Seo

S1·E15

Something Worth Dying For

Aug 24, 2020 · 67 min

Yoo Jeong Seok admits to his doings before his junior reporters and leaves the office, ordering them to stay put until his next instruction. While being threatened by Oh Jong Tae,

S1·E16

The Last Target

Aug 25, 2020 · 71 min

The shocking death of Yoo Jeong Seok stirs up the public, and the case is now under a spotlight. As the prosecutor makes a confession to his previous wrongdoing out of conscience,