Genre: Fantasy, Mystery, Thriller
Cast: Choi Jin Hyuk, Lee Yoo Young, Yoon Hyun Min
Original Network: OCN
Original Release: March 25, 2017
Tunnel also know as Teoneol is a Korean drama / tv series made in South Korea, starring Choi Jin Hyuk, Lee Yoo Young, and Yoon Hyun Min. It aired every Saturday and Sunday on OCN at 22:00 (KST) starting March 25, 2017, for 16 episodes.
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In the past of 1986, a Police Detective Park Gwang-Ho (Choi Jin-Hyuk) desperately tries to catch a serial killer. He chases after the serial killer and goes through a tunnel. He travels in time to the present day on the other side of the tunnel. Detective Park Gwang-Ho finds himself in the year 2017. The serial killer has resumed the killings that began 30 years ago. Detective Park Gwang-Ho works with Detective Kim Sun-Jae (Yoon Hyun-Min) and Professor of Criminal Psychology Shin Jae-Yi (Lee Yoo-Young) to catch the killer.