Oh, the Mysterious[2] (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.

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

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).