tvN’s The Second Signal (2026) is the sequel to the hit drama, Signal (2016), that follows a criminal profiler and a female police officer from the present, and a detective from the past who work together to solve cold cases through a mysterious walkie-talkie. The drama was inspired by real-life criminal incidents in South Korea.
Genre: Crime, Thriller, Sci-fi
Also known as: Signal
No. of episodes: 8
Screenwriter: Kim Eun Hee
Director: Ahn Tae Jin
Network: tvN
Streaming platform: TBA
Date: November 30, 2026
Cast:
Lee Je Hoon as Park Hae Young
Kim Hye Soo as Cha Soo Hyun
Cho Jin Woong as Lee Jae Han
Official poster
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Official trailer
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Source: 1 | Images: tvN
