Tunnel () is a 2017 South Korean television series starring Choi Jin-hyuk, Yoon Hyun-min and Lee Yoo-young. It replaced Voice and aired on cable network OCN on Saturdays and Sundays at 22:00 (KST) from March 25 to May 21, 2017 for 16 episodes. The series was inspired by the Hwaseong serial murders.
The series was a hit in China. It received a Thai remake in 2019, and an Indonesian remake was announced in 2020.
Synopsis In 1986, Park Gwang-ho works as a successful detective in an enthusiastic manner. However, his life changes when he takes the lead in a serial homicide case and passes through a tunnel while chasing the "culprit". He time travels 30 years into the future (2016), where he meets a new partner, Kim Seon-jae, an eccentric elite detective that has a high ability in investigation. When the serial killer continues the "modus operandi" of his murders that happened 30 years ago, the detective duo work together with criminal psychologist, Professor Shin Jae-yi, to solve the unsolved murders and to catch the murderer.
Cast Main Choi Jin-hyuk as Park Gwang-ho Hwayang police station's criminal sergeant detective who mysteriously disappears in 1986 and appears in 2016. Yoon Hyun-min as Kim Seon-jae Kim Seul-woo as child Seon-jae Hwayang police station's elite criminal lieutenant detective in 2016. Lee Yoo-young as Shin Jae-yi Kim Se-hee as Park Yeon-ho (Jae-yi's name in the childhood) Lee Da-kyung as teenage Jae-yi Park Gwang-ho and Shin Yeon-sook's only daughter. University professor and criminal psychological counselor in 2016.
Supporting Criminal Team 1 Jo Hee-bong as Jeon Sung-sik Kim Dong-young as young Jeon Sung-sik Hwayang police station's criminal team 1 leader in 2016, previously a criminal corporal detective and the youngest of his team in 1986. Kim Byung-chul as criminal detective Kwak Tae-hee Kang Ki-young as criminal detective Song Min-ha
Extended Lee Si-a as Shin Yeon-sook Park Gwang-ho's wife in 1986. She died in a car accident in 1991. as Mok Jin-woo Choi Seung-hoon as child Jin-woo as teenage Jin-woo (Ep. 12) Hwayang University's Faculty of Medicine forensic doctor in 2016. He is the real culprit of the mysterious 1986 Hwayang serial killings. as reporter Oh / Oh Ji-hoon Reporter Oh who often searched for information at Hwayang police station in 1986; now a taxi driver in 2016 who wants to become a police officer named Oh Ji-hoon. Cha Hak-yeon as Park Gwang-ho Criminal corporal police in 2016 with three years of experience, also named Park Gwang-ho but born in 1988. The youngest of team 1, but has been missing since the first day of transferring work, and gets entangled in an unexplained pursuit leading to his death. as leader Oh Hwayang police station's criminal department leader in 1986. Moon Sook as Hong Hye-won Psychologist and the president of Hwayang University in 2016. Yoo Ji-soo as Lee Nan-young, Kim Seon-jae's stepmother (Ep. 5, 7, 8)
Case characters Women Mass Murder Case at Hwayang in 1985–1986 (Ep. 1-3) Heo Sung-tae as Jung Ho-young Ham Sung-min as young Jung Ho-young N/A as Lee Jeong-sook First victim, her corpse was discovered in a field. N/A as Kim Kyung-soon High school student and the second victim, her corpse was discovered at Haein riverside. as Hwang Choon-hee Rose cafe's staff and the third victim. Her corpse was discovered at the reeds area near Sungyoo mountain. Seok Bo-bae as Seo Yi-soo Kim Wan's wife and Kim Seon-jae's mother. She was the fourth victim who was killed on her way back home, on the bare ground near the military base. as Kim Wan Seo Yi-soo's husband and Kim Seon-jae's father. He was a military officer in 1986. Kim Hye-yoon as young Kim Young-ja The fifth victim but still alive at this time, changed her name to Kim Jeong-hye. N/A as Jin Seon-mi The sixth victim who was killed in a tunnel, which is the beginning of Park Gwang-ho's disappearance after he meets the perpetrator again.
Suicide at Hwayang Psychiatric Hospital (former Hwayang Chapel) in 2016 (Ep. 2) as Lee Seon-ok Shin Na-ae as Lee Seon-ok in 1986 Victim. Mental patient in 2016, previously a murder suspect in 1986 and captured in 1990 after three murders.
Kim Jeong-hye's Murder Case in 2016 (Ep. 2–3) Jo Shi-nae as Kim Jeong-hye Victim of this case, previously named Kim Young-ja. (see the case above) as Kim Tae-soo Murder perpetrator. He had feelings for the victim, but it wasn't reciprocated because of his fake hand. as Jang Young-cheol, victim's ex-husband as hostess of Ho motel, where the victim had been staying. as Jang Young-cheol, motel owner Sung Hyun-mi as the owner of a restaurant where the victim often came to eat alone.
Local House Robbery and Yoon Dong-woo's Murder Case in 2016 (Ep. 4) Choi Won-hong as Yoon Dong-woo Choi Myung-bin as Yoon Soo-jeong, Dong-woo's younger sister as Noh Young-jin SAFE security company's former employee who was fired for theft, one of the robbers of the local houses protected by SAFE who was arrested at the scene, and who stabbed Dong-woo with the first knife. Jung Soon-won as Young-jin's co-robber, who was also arrested at the scene and who stabbed Dong-woo with a second knife.
Choi Hong-seok's Murder Case (Ep. 5) as Kim In-hwan (58-year-old) Teacher and the perpetrator. His son, Kim Ji-hoon, was killed by Choi Hong-seok in the military enlistment. Hong Boo-hyang as Ji-hoon's mother Woo Hyun as Go Man-seok, 48-year-old rest stop owner Im Kang-sung as Ma Young-gil, 30-year-old professional baseball player as Lee Dae-hwan, 27-year-old former prisoner and tow truck driver as Hwang Do-kyung, 27-year-old and Ministry of Strategy and Finance's IT Officer's secretary
Impersonation and Jo Dong-ik's Murder Case (Ep. 6) Seo Eun-ah as Kim Mi-soo, perpetrator as Yoon Young-joo, victim as victim Go Ah-ra's mother as Mi-soo's ex-boyfriend
Seon-Hwa Dressmaking Shop's Fire Case (Ep. 8) Ahn Yong-joon as Kim Hee-joon, perpetrator Yoon Mi-hyang as Seon-Hwa, dressmaking shop's owner as Sook-jin, shop owner opposite Seon-Hwa's shop, and Hee-joon's mother
Chain Murder Case (Ep. 7, 9–16) as Yoo Ok-hee, Jung Ho-young's old mother (Ep. 9)
Others
Hong Gi-joon as Hwayang Police Station's detective in 1986 Kang Seok-won as Hwayang Police Station's detective in 1986 Choi Jae-hyuk Han Sang-gil Jung Dong-hoon Jung Young-geum Jung Mi-hye Lee Jin-mok Han Sang-woo Hyun Jeong-cheol Dang Hyun-seok Kim In-ho Go Bong-goo Jo Jeong-hoon Kang Ji-hoon Lee Kang-young Park Se-joon Jung Dae-yong Kim Min-sung Kwak Min-gyu Kim Jong-ho Gong Soo-min as the older sister between two children who lost a puppy (Ep. 1) Kim Ji-an as the younger sister between two children who lost a puppy (Ep. 1) Kim Tae-young Lee Soo-yeon as Seo Jeong-eun, daughter of Lee Seon-ok's victim (Ep. 2) Lee Jae-eun as Park Gwang-ho and Shin Jae-yi's house owner (Ep. 2) Park Jong-bo Lee Beom-chan Jang Won-jin Yoo Kyung-hoon Kim Ki-beom Lee Seon-young Shim Sang-woo Kim Eun-hae Kim Yoo-jin Yoon Seo-jeong Jin Jeong-gwan Yoo Jae-ik Park Eun-young Lee Joo-young Kim Young-hee Lee Jae-eun as the woman is eating with two children in the restaurant (Ep. 4) Park Jin-sung Shin Tae-hyun Choi Hye-jeong Yoo Kyung-hoon Park In-jeong Park Ok-chool Jo Yong-sang Oh Sang-hwa Kim Sang-il Jung Tae-ya Choi Hyun-joon Lee Do-gyeom Cha Jae-man Choi Young-min Kwon Ban-seok as detective, Kim Seon-jae's former partner who lost Jung Ho-young at the police station (Ep. 5) Uhm Ok-ran Kim Do-hyung Choi Na-moo Kim Nam-hee Lee Dong-gyu Jo Hyun-jin as Choi Hong-seok's military enlistment teammate (Ep. 5) Park Ik-joon Kim Jong-doo Kwon Jin-ran Kang Hak-soo Son In-yong Kim Kyung-min Min Hyo-kyung Jung Hee-young Jung Hee-jong Seo Jeong-joon
Shin Yool-yi Jin Myung-seon
Jang Hyo-min Han Hye-mi Choi Da-young Kim Beo-deul Park Sung-min Lee Jeong-joo Kim Nam-hee Park Ji-yeon Nam Jeong-hee as Gwang-ho (born 1988)'s old hometown neighborhood woman (Ep. 6) Park Seung-tae as Gwang-ho (born 1988)'s old hometown neighborhood woman (Ep. 6) Seo Woo-jin Baek In-kwon Kim Jin-woo Seo Dong-gyu Lee Seung-yeon as Jin Sung-cheol, younger brother of Jin Seon-mi (Jung Ho-young's sixth victim in 1986) (Ep. 6) Seo Young-sam Ha Min Kim Nam-hee as Yoon-hui Ahn Soo-bin Joo Hye-min Yoo Yong-beom Ji Sung-geun as shopping guy (Ep. 8) Choi Gyo-sik as Oh Young-dal, cellphone shop owner (Ep. 8) Kim Bi-bi Jeon Byung-deok Heo Seon-haeng as man in the shopping store (Ep. 8) Oh Seung-hee as old woman in Mooyoung Clinic (Ep. 8) Min Dae-sik Park Cheol-min Jo Seung-yeon as Hwayang police station's department head (Ep. 9) Park Sang-yong Jo Sung-yoon Nam Sang-baek Jo Huin-dol Jeon Jae-hyun Im Sung-pyo as Hwayang police station chief in 2016 (Ep. 9) Baek Hyun-joo as Jung Ho-young's older sister-in-law (Ep. 9) Yoo Min-ja as Jung Ho-young's mother-in-law (Ep. 9) Kim Young-seon as Jung Ho-young's psychiatrist in 1987 (Ep. 9) Yoon Jin-sol as Haein river victim Yoon Da-young's friend (Ep. 9) Oh Hyo-jin Kim Kwang-tae Park Jae-won Baek Seung-ah Ok Joo-ri as Jung Ho-young's younger sister Jung Hye-ji's neighbor (Ep. 10) Hong Hee-ra So Joon-hyung Han Ji-ho Ahn Jang-hoon Lee Taek-geun Won Seo-ho Lee Eun-seok Kim Sung-yeon Kim Jeong-min Park Jin-soo as Shin-Hae Chemical's former employee (Ep. 12) Kang Woon Yoo Byung-seon as Hwayang police station's criminal team 2's detective Kim (Ep. 12) Jang Hyun-jeong Yoon Hyo-jin Moon Gi-young Lee Hyun-eung Jo Hyun-geon Lee Ja-ryung Lee Soo-ja Choi Jeong-ja Noh Tae-young Jo Min-jae
Cha Do-yeon Kang Yoon-jeong Yoon Boo-jin Kim Jae-cheol Go Tae-young Kim Moon-ho Han Seung-hyun Ryoo Jeong Park Yong-jin as father of Kim Kyung-soon (Jung Ho-young's second victim) (Ep. 16) Lee Young-hee as mother of Lee Jeong-sook (Jung Ho-young's first victim) (Ep. 16) Kim Doo-hee Yoo Chang-sook as mother of Hwang Choon-hee (Jung Ho-young's third victim) (Ep. 16) Kim Won-joong Yoo Young-bok
Special appearances as Kim Jong-doo, forensic doctor of Hwayang Public Health Center in 1986 (Ep. 1) Oh Yoon-hong as Madam Jung, owner of Rose café located in front of the police station in 1986 (Ep. 1) as Hwayang police station chief in 1986 (Ep. 1) as Lee Geum-soon (Ep. 3) as priest in the church when Jung Ho-young comes to confess after killing the seventh woman in 2016 (Ep. 4) Choi Il-hwa as Yoo Sung-jae, a pharmacist who loved Yeon-sook after Gwang-ho was believed to be dead in 1986 (Ep. 8) as senior police officer (Ep. 9) as Kim Kyung-tae (Ep. 12) Kim Ji-sung as Hwayang police station's criminal team 2's leader (Ep. 15) as Park Kwang-ho (born 1988)'s mother (Ep. 16)
Original soundtrack
Ratings In this table, represent the lowest ratings and represent the highest ratings.
Original broadcast date Average audience share AGB Nielsen TNmS Nationwide Seoul Nationwide 1 March 25, 2017 2 March 26, 2017 3.131% 3.268% 3.2% 3 April 1, 2017 4.228% 4.689% 4.1% 4 April 2, 2017 3.555% 3.293% 4.3% 5 April 8, 2017 3.522% 3.733% 3.6% 6 April 9, 2017 4.042% 3.922% 3.3% 7 April 15, 2017 3.863% 3.951% 4.1% 8 April 16, 2017 5.179% 5.100% 4.9% 9 April 22, 2017 4.700% 4.942% 4.3% 10 April 23, 2017 5.413% 5.536% 5.4% 11 April 29, 2017 4.921% 4.967% 4.4% 12 April 30, 2017 5.375% 5.480% 5.1% 13 May 13, 2017 5.491% 5.779% 4.9% 14 May 14, 2017 6.263% 6.901% 4.9% 15 May 20, 2017 5.843% 6.510% 5.4% 16 May 21, 2017 Average
Remake
The series remade into Thai language with the same title in 2019.
An Indonesian adaptation starring Donny Alamsyah and Hana Malasan, and directed by Ifa Isfansyah as one of the three directors assigned to direct different episodes. Tanya Yuson and Shanty Harmayn served as the showrunners, while Fourcolors Films produced the show.
References
External links