TV series
A drama about the race between people who want to get closer to the truth and those who want to cover it up. Jang Seung Jo will take on the role of Oh Ji Hyuk, an elite detective of nine years who does not share his feelings with others due to pain he experienced when he was young. He is not swayed by money and power, even with the huge wealth he inherited from his uncle.
Streaming, rental and purchase options
Checked Jul 22, 2026
The Good Detective is available to stream on Netflix, Rakuten Viki, The Roku Channel, and Tubi in United States. Use the direct links below to open the provider.
A drama about the race between people who want to get closer to the truth and those who want to cover it up. Jang Seung Jo will take on the role of Oh Ji Hyuk, an elite detective of nine years who does not share his feelings with others due to pain he experienced when he was young. He is not swayed by money and power, even with the huge wealth he inherited from his uncle.
Choose an episode, then use the watch options above for the show.
Episode 1
A serial killer is on the loose. As Do-chang battles past trauma, the investigation grows murkier, only taking him further from the truth.
Guest stars Jang Yoon-woo, Lee Woo-shin, Lee Eun-ju, Park Chul-Min, Lee Dong-soo, Kim Hyun-tae, Koo Min-hyuk, Song Chang-gyu
Episode 2
Do-chang’s guilt grows after another unexpected death takes place. Others want to wrap up the case, but Do-chang and Ji-hyeok refuse to give up.
Guest stars Jo Jae-yun, Kim Kyu-baek, Lee Joo-sil, Ji Seong-geun, Kim Jong-ho, Choi Kyung-min, Kim Bong-soo, Lee Yoon-jae
Episode 3
The detectives find some strong evidence and start going over CCTV footage. A man burns mysterious objects, and makes a suspicious approach.
Guest stars Chun Young-min, Choi Kyung-min, Kim Bong-soo, Lee Yoon-jae, Kim Hyun-chang, Jang Ui-don, Lee Dong-kyu, Bang Eun-jeong
Episode 4
Do-chang and Ji-hyeok are hot on the killer’s heels, but elsewhere another murder is underway. Cheon Sang-u keeps an eye on Cheon Na-na.
Guest stars Bang Eun-jeong, Choi Won, Lee Yeon-ju, Cheon Dong-been, Yoon Hyun-gil, Park Ye-ni
Episode 5
Do-chang finds out about the killer’s tragic past and realizes that one piece of his pattern of murders doesn’t line up. He induces a confession.
Guest stars Park Ye-ni, Park Hyo-ju, Noh Ha-yeon, Kim Jang-hwan, Kang Jong-sung, Lee Joong-hyun, Park Wan-kyu, Ahn Soo-ho
Episode 6
Na-na follows Sang-u and finds some evidence. The team is threatened with being broken up. The detectives investigate Jung Hui-ju’s acquaintances.
Guest stars Yoo Mi-Sun, Yong-Jin, Lee Suk
Episode 7
Kim Min-ji’s background is revealed. The detectives get proof that incriminates TJ Group executives. Ji-hyeok is curious about Na-na’s intentions.
Guest stars Lee Suk, Lee Ho-cheol, Park Ji-ho
Episode 8
Na-na’s press conference throws Woo Tae-ho into disarray. A suspect in the Hui-ju case is caught and some clarity is brought to the case.
Guest stars Oh Jung-se, Lee Hyun-kyun, Lee Chang-sub, Park Jong-moo, Jang Yong-hee
Episode 9
The detectives question Na-na about the car accident. They investigate Tae-ho's previous whereabouts, but Choi Yong-geun is looking into this too.
Guest stars Lee Hyun-kyun, Myung Jae-hwan, Jang Myoung-un
Episode 10
Na-na preys on Sang-u’s weaknesses. A mysterious man follows Moon Bo-kyeong, while Yong-geun plans to use her connections to his advantage.
Guest stars Myung Jae-hwan, Kim Dae-gook, Baek Soo-jang, Park Joon-sang, Shin Yoon-jung
Episode 11
Yong-geun is arrested, but uses his experience to make the interrogation difficult. The detectives search for a motive for Sang-u’s murder.
Guest stars Yoon Hyun-gil, Baek Soo-jang, Jang Myoung-un, Lee Jin-Seung, Yang Ha-yoon, Kim Ji-Yoon, Lee Ji-young
Episode 12
Sang-u is furious after realizing that Na-na came close to turning him in. Ji-hyeok provokes Yong-geun in an attempt to make Sang-u culpable.
Guest stars Jo Jae-yun, Seo Myung-chan
Episode 13
The detectives ask to reopen Tae-ho’s case and look for further evidence regarding his death. Na-na asks Ji-hyeok to make an allegiance with her.
Guest stars Hwang Jae-yeol, Han Myeong-hwan, Kim Byung-cheol, Lee Min-Sik
Episode 14
The detectives question the gang who tried to kill Hui-ju’s grandfather. As they get closer to the truth, Na-na and Jang Ki-jin get into trouble.
Guest stars Hwang Jae-yeol, Gu Yun-hoe, Lim Seung-beom, Lee Moo-nyoung
Episode 15
Na-na passes evidence of her father threatening her to Ji-hyeok, but he uses it against her. Ki-jin files a false charge against Do-chang’s team.
Guest stars Lim Seung-beom, Shin Dong-mi, Ha Young-jin, Kim Dae-geun
Episode 16
While the detectives search for proof of Na-na’s crimes, she becomes chairman of TJ Group. Ji-hyeok gives testimony to get Sang-u released.
Guest stars Hwang Jae-yeol, Lee Na-ra
Episode information updated Jul 23, 2026
Son Hyun-jooKang Do-chang
Jang Seung-joOh Ji-hyeok
Lee ElijahJin Seo-kyeong
Kim Hyo-jinCheon Na-na
Jung Moon-sungWoo Tae-ho
Cha Rae-hyungKwon Jae-hong
Jung Soon-wonJi Man-gu
Ji Seung-hyunYoo Jeong-seok
JTBCSouth KoreaJTBCSouth Korea
JTBC StudiosSouth KoreaMore shows like The Good Detective.
