# Oh, the Mysterious

Oh, the Mysterious (Korean: 의문의 일승; RR: Uimunui Ilseung; lit. Doubtful Victory) is a South Korean television series starring Yoon Kyun-sang and Jung Hye-sung. It aired on SBS from November 27, 2017, to January 30, 2018, on Mondays and Tuesdays at 22:00 (KST) for 40 episodes.

## Synopsis

About a framed escapee turned fake police detective (Yoon Kyun-sang) taking down bad criminals and learns to uncover his true identity.

## Cast
### Main

* Yoon Kyun-sang as Kim Jong-sam/Oh Il-seung
    A framed ex-convict and prison escapee who becomes a fake detective that becomes a part of Metropolitan Investigation Unit. He is smart and fast at what he does while being handsome and firm.
* Jung Hye-sung as Jin Jin-young
    An inspector of the investigation unit who is smart, athletic with an impressive performance record.

### Supporting
#### Seoul Metropolitan Police Agency

* Kim Hee-won as Park Soo-chil
* Do Ki-seok as Kim Min-pyo
* Kang Shin-hyo as Kwon Dae-woong
* Choi Won-young as Jang Pil-seong
* Im Hyun-sik as Jo Man-seok

#### Institute for Future Economics

* Jun Gook-hwan as Lee Kwang-ho
* Kim Young-pil as Ahn Tae-jung

#### Food Company

* Yoon Yoo-sun as Kook Soo-ran
** Kim Hye-yoon as young Kook Soo-ran
* Park Sung-geun as Kwak Young-jae
* Oh Seung-hoon as Gi Myeon-jung
* Kim Dong-won as Baek Kyung

### Others

* Jang Hyun-sung as Kang Cheol-gi
* Kwon Hwa-woon as Hyeon Jin-gyeom
* Choi Hyo-eun as Kim-ji
* Jeon Sung-woo as Scab
** Kim Ye-jun as young Scab
* Kim Da-ye as Cha Eun-bi
** Ok Ye-rin as Young Cha Eun-bi
* Baek Eun-hye as Nurse
* Jeon Ye-seo as Han Cha-kyung
* Yoon Bok-in as Yoo Kwang-mi
* Choi Dae-hoon as Kim Yoon-soo
* Moon Woo-jin as Han Kang
* Jason Scott Nelson as Drug lord
* Jeon No-min as Jin Jung-gil
* Yoon Na-moo as Song Il-chun

## Production

The series is directed by Shin Kyung-soo of Deep Rooted Tree (2011) and Six Flying Dragons (2015) and written by Lee Hyun-joo of School 2013 (2012).

## Ratings

* In the table below, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.
* NR denotes that the series did not rank in the top 20 daily programs on that date.
| Ep. | Original broadcast date | Average audience share | Average audience share | Average audience share | Average audience share |
| Ep. | Original broadcast date | TNmS | TNmS | AGB Nielsen | AGB Nielsen |
| Ep. | Original broadcast date | Nationwide | Seoul | Nationwide | Seoul |
| 2017 ||||||
| 1 | November 27, 2017 | 4.1% (NR) | 4.5% (NR) | 5.0% (NR) | 5.4% (NR) |
| 2 | November 27, 2017 | 5.2% (NR) | 5.7% (NR) | 5.4% (NR) | 6.0% (NR) |
| 3 | November 28, 2017 | 4.0% (NR) | 4.2% (NR) | 4.5% (NR) | 4.7% (NR) |
| 4 | November 28, 2017 | 4.2% (NR) | 4.3% (NR) | 4.9% (NR) | 5.0% (NR) |
| 5 | December 4, 2017 | 5.8% (NR) | 6.7% (NR) | 6.9% (NR) | 8.0% (14th) |
| 6 | December 4, 2017 | 6.4% (NR) | 7.3% (16th) | 7.6% (16th) | 8.4% (16th) |
| 7 | December 5, 2017 | 5.8% (NR) | 5.8% (20th) | 6.6% (19th) | 7.5% (15th) |
| 8 | December 5, 2017 | 6.6% (17th) | 6.2% (18th) | 7.5% (13th) | 8.2% (9th) |
| 9 | December 11, 2017 | 5.4% (NR) | 5.7% (NR) | 6.4% (NR) | 6.6% (NR) |
| 10 | December 11, 2017 | 6.3% (NR) | 6.6% (20th) | 7.8% (18th) | 9.3% (10th) |
| 11 | December 12, 2017 | 5.5% (NR) | 6.2% (18th) | 6.6% (19th) | 7.0% (18th) |
| 12 | December 12, 2017 | 5.7% (NR) | 6.2% (16th) | 7.7% (14th) | 8.2% (10th) |
| 13 | December 18, 2017 | 5.2% (NR) | 5.9% (NR) | 6.6% (NR) | 7.3% (19th) |
| 14 | December 18, 2017 | 5.8% (NR) | 6.4% (NR) | 7.3% (19th) | 7.9% (14th) |
| 15 | December 19, 2017 | 5.6% (NR) | 6.2% (15th) | 6.7% (19th) | 7.5% (17th) |
| 16 | December 19, 2017 | 5.7% (NR) | 5.9% (17th) | 7.6% (15th) | 8.4% (8th) |
| 17 | December 25, 2017 | 4.3% (NR) | 4.4% (NR) | 5.7% (NR) | 5.8% (NR) |
| 18 | December 25, 2017 | 5.6% (NR) | 6.0% (NR) | 7.1% (NR) | 7.6% (15th) |
| 19 | December 26, 2017 | 5.5% (NR) | 6.1% (NR) | 5.6% (NR) | 6.2% (19th) |
| 20 | December 26, 2017 | 6.0% (NR) | 6.6% (NR) | 6.3% (17th) | 6.9% (16th) |
| 2018 ||||||
| 21 | January 1, 2018 | 4.8% (NR) | 5.2% | 5.5% (NR) | 5.9% (NR) |
| 22 | January 1, 2018 | 5.8% (NR) | 6.1% | 6.3% (NR) | 6.6% (NR) |
| 23 | January 2, 2018 | 5.2% (NR) | 5.9% | 6.0% (NR) | 6.8% (17th) |
| 24 | January 2, 2018 | 5.6% (NR) | 6.2% | 6.5% (17th) | 7.1% (16th) |
| 25 | January 8, 2018 | 4.7% (NR) | 5.6% | 5.8% (NR) | 6.7% (NR) |
| 26 | January 8, 2018 | 5.3% (NR) | 6.0% | 6.2% (NR) | 6.9% (18th) |
| 27 | January 9, 2018 | 5.1% (NR) | 6.2% | 6.6% (NR) | 7.6% (17th) |
| 28 | January 9, 2018 | 5.3% (NR) | 6.4% | 6.9% (19th) | 7.8% (15th) |
| 29 | January 15, 2018 | 4.9% (NR) | 5.0% | 5.2% (NR) | 5.7% (NR) |
| 30 | January 15, 2018 | 5.2% (NR) | 5.4% | 5.7% (NR) | 5.8% (NR) |
| 31 | January 16, 2018 | 5.0% (NR) | 5.3% | 5.5% (NR) | 5.7% (NR) |
| 32 | January 16, 2018 | 5.5% (NR) | 6.5% | 6.4% (NR) | 7.3% (15th) |
| 33 | January 22, 2018 | 5.5% (NR) | 6.1% | 6.6% (NR) | 7.2% (18th) |
| 34 | January 22, 2018 | 6.4% (NR) | 6.9% | 7.7% (16th) | 8.2% (11th) |
| 35 | January 23, 2018 | 6.5% (19th) | 7.1% | 7.7% (13th) | 8.3% (10th) |
| 36 | January 23, 2018 | 6.9% (18th) | 7.4% | 8.5% (12th) | 9.1% (8th) |
| 37 | January 29, 2018 | 6.5% (NR) | 7.0% | 7.1% (18th) | 7.7% (15th) |
| 38 | January 29, 2018 | 6.9% (NR) | 7.3% | 8.1% (14th) | 8.5% (14th) |
| 39 | January 30, 2018 | 6.9% (15th) | 7.6% | 7.7% (12th) | 8.5% (8th) |
| 40 | January 30, 2018 | 8.2% (11th) | 8.9% | 9.0% (8th) | 9.8% (6th) |
| Average | Average | 5.6% | 6.1% | 6.6% | 7.2% |

## Awards and nominations

| Year | Award | Category | Nominee | Result |
| 2017 | 25th SBS Drama Awards | Top Excellence Award, Actor in a Monday–Tuesday Drama | Yoon Kyun-sang | Nominated |
| 2017 | 25th SBS Drama Awards | Excellence Award, Actress in a Monday–Tuesday Drama | Jung Hye-sung | Nominated |
| 2018 | 11th Korea Drama Awards | Best New Actress | Jung Hye-sung | Nominated |

## International broadcast

* In Singapore and Malaysia, the series aired within 24 hours after its original South Korean broadcast on Sony One under the title Doubtful Victory.