Watch SIGNAL: The Movie – Cold Case Investigation Unit (2021): stream SIGNAL: The Movie – Cold Case Investigation Unit (2021) on Amazon Prime, Amazon Prime Video with Ads, Hoopla, or rent on Apple TV+ or Fandango At Home. Compare all streaming options for this movie on WhereCanIWatch.tv.
SIGNAL: The Movie – Cold Case Investigation Unit
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You can watch SIGNAL: The Movie – Cold Case Investigation Unit (2021) for free on Hoopla, rent on Apple TV+, or buy 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.
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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 watch SIGNAL: The Movie – Cold Case Investigation Unit (2021) for free on Hoopla, rent on Apple TV+, or buy 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
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changing the past or future · based on tv series
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. Watch SIGNAL: The Movie – Cold Case Investigation Unit for free on Hoopla. 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+. Rent SIGNAL: The Movie – Cold Case Investigation Unit on Fandango At Home. Rent SIGNAL: The Movie – Cold Case Investigation Unit on Google Play Movies. Buy SIGNAL: The Movie – Cold Case Investigation Unit on Apple TV+. Buy SIGNAL: The Movie – Cold Case Investigation Unit on Fandango At Home. Buy SIGNAL: The Movie – Cold Case Investigation Unit on Google Play Movies. SIGNAL: The Movie – Cold Case Investigation Unit is not currently available on Netflix, Hulu, Max, Disney+, Prime Video. Availability last verified May 30, 2026.