Signal Season 1 Episode 1
Overview
Haunted by a classmate’s kidnapping 15 years ago, Park Hae Young becomes a police profiler who’s lost faith in the police force. This all changes when he stumbles upon an old radio that’s receiving transmissions from the past.
Director: Kim Won-suk
Guest Star: Choi Hyun-joon, choi-hyun-jun, Jang Hyuk-jin, Jeong Jong-yeol, Kim Soo-jin, Lee Young-eun, lee-yeong-eun, Oh Yeon-ah, Seo Jung-joon, Song You-hyun