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Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.
Cast
Lee Je-hoon, Kim Hye-soo, Cho Jin-woong, Jang Hyun-sung, Jung Hae-kyun, Kim Won-hae, Jung Han-bi, Lee Yoo-jun, Kim Min-gue, Kang Chan-hee
Signal is streaming on Netflix. Signal is not currently available on Hulu, Max, Disney+, Prime Video, Apple TV+. Availability last verified February 24, 2026.
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Netflix
Stream • Included
HD
