Where to watch SIGNAL: The Movie – Cold Case Investigation Unit in the United States
SIGNAL: The Movie – Cold Case Investigation Unit (2021) is streaming on Amazon Prime. Also available to rent on Apple TV+.
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SIGNAL: The Movie – Cold Case Investigation Unit
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You can stream SIGNAL: The Movie – Cold Case Investigation Unit (2021) on Amazon Prime with a subscription, or rent on Apple TV+.
The story continues from the Japanese SIGNAL drama series. In 2021, a limousine taxi driver causes an accident on a highway, and a high-level government official dies in the accident. The cold case investigation unit, including Kento Saegusa and team leader Misaki Sakurai, have doubts about the case. Meanwhile, in 2009, administrative officers die consecutively in car accidents. The police announce these deaths as accidents. Takeshi Ōyama believes that these deaths were not the product of simple accidents. At 11:23 pm, a walkie-talkie turns on and makes a connection between the future and past. Kento Saegusa and Takeshi Ōyama face the threat of bioterrorism.
A highway accident involving a high-level official pulls a dedicated team of detectives back into a labyrinth of government secrets and unsolved mysteries. This investigation bridges the gap between modern-day chaos and the echoes of 2009 to unmask a killer.
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Director
Hajime Hashimoto
Cast
Kentaro Sakaguchi, Kazuki Kitamura, Michiko Kichise, Yuichi Kimura, Tetsuhiro Ikeda, Kaede Aono, Tsuyoshi Ihara, Tetsushi Tanaka, Tetta Sugimoto, Takeshi Kaga
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SIGNAL: The Movie – Cold Case Investigation Unit
You can stream SIGNAL: The Movie – Cold Case Investigation Unit (2021) on Amazon Prime with a subscription, or rent on Apple TV+.
Director
Hajime Hashimoto
Cast
Kentaro Sakaguchi, Kazuki Kitamura, Michiko Kichise, Yuichi Kimura, Tetsuhiro Ikeda, Kaede Aono, Tsuyoshi Ihara, Tetsushi Tanaka, Tetta Sugimoto, Takeshi Kaga
4 options ranked by value · 🇺🇸 United States
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SIGNAL: The Movie – Cold Case Investigation Unit is streaming on Amazon Prime. SIGNAL: The Movie – Cold Case Investigation Unit is streaming on Amazon Prime Video with Ads. SIGNAL: The Movie – Cold Case Investigation Unit is streaming on Shout! Factory Amazon Channel. Rent SIGNAL: The Movie – Cold Case Investigation Unit on Apple TV+. We have not verified a current option on Netflix, Hulu, Max, Disney+, Prime Video. Availability last verified September 26, 2026.