1 Season
16 Episode
Signal - Season 1 Episode 7 We Must Dig Deeper (2016)
Jae-han arrests Se-kyu for the serial burglary case, but the culprit is freed after serving a short sentence; Kyung-tae still commits murder.
- Country : South Korea
- Genre : Crime, Mystery, Sci-Fi & Fantasy, Drama
- Studio : tvN
- Director : Kim Eun-hee, Kim Won-suk
- Cast : Lee Je-hoon, Kim Hye-soo, Cho Jin-woong, Jang Hyun-sung, Jung Hae-kyun, Kim Won-hae