Verdict:SIGNAL: The Movie – Cold Case Investigation Unit is a confirmed FLOP based on our analysis of audience ratings and box office momentum.
With a rating of 6.1/10, it has delivered a mixed experience for fans of the Mystery, Crime genre.
Answer: Yes, SIGNAL: The Movie – Cold Case Investigation Unit is definitely worth watching if you enjoy Mystery movies.
It features a runtime of 122 minutes and offers a standard storyline that appeals to mature audiences.
Last updated: January 11, 2026
Released in 2021, SIGNAL: The Movie – Cold Case Investigation Unit enters the Mystery genre with a narrative focused on The story continues from the Japanese SIGNAL drama series. Under the direction of Hajime Hashimoto, the film attempts to weave detailed character arcs with visual storytelling.
The film is anchored by performances from Kentaro Sakaguchi. While the cast delivers competent performances, the script occasionally limits their range.
From a technical standpoint, SIGNAL: The Movie – Cold Case Investigation Unit offers a competent presentation. The cinematography uses a distinct visual palette that aligns well with the tone. While the 4K mastering highlights the production value, the pacing during its 122-minute runtime can feel deliberate.
Beyond the narrative, SIGNAL: The Movie – Cold Case Investigation Unit resonates with current cultural themes in the Mystery space. It stays within the established boundaries of its genre, providing exactly what core fans expect without reinventing the wheel.
As of early 2026, SIGNAL: The Movie – Cold Case Investigation Unit is available for streaming on Amazon Prime Video. It is also featured on platforms like Amazon Prime Video with Ads and Shout! Factory Amazon Channel. For audiences in the US, UK, and India, digital rentals are typically available on platforms like Amazon Video roughly 45-60 days after the theatrical release.
The plot of SIGNAL: The Movie – Cold Case Investigation Unit centers on a unique premise within the Mystery landscape. 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. The second act serves as a major turning point, leading to a climax that fans of 2021 cinema will find fairly predictable.
The ending of SIGNAL: The Movie – Cold Case Investigation Unit has sparked significant debate on social media. It signifies the ambiguous resolution of the main plot thread. Given the current box office momentum, discussions of a SIGNAL: The Movie – Cold Case Investigation Unit sequel or a wider cinematic universe are already gaining traction.
Final verdict for SIGNAL: The Movie – Cold Case Investigation Unit (2021): with an audience rating of 6.1/10, the reception has been divisive. It is a recommended for fans of Mystery, Crime cinema who appreciate attention to detail.
| Metric / Region | Collection (Approx) |
|---|---|
| Worldwide Gross | $7,388,603 |
| Trade Verdict | FINANCIAL DISAPPOINTMENT |
Amazon Prime Video
Amazon Prime Video with Ads
Shout! Factory Amazon Channel
Amazon Video
Apple TV
Google Play Movies
YouTube
Fandango At HomeAmazon VideoApple TVGoogle Play MoviesYouTubeFandango At HomeAnalyzing the audience sentiment, IMDb rating of 6.1/10, and global collection metrics, SIGNAL: The Movie – Cold Case Investigation Unit stands as a challenging project for the creators. It remains an essential piece of the 2021 cinematic year.
SIGNAL: The Movie – Cold Case Investigation Unit has received mixed reviews with a 6.1/10 rating, making it a moderate success with the audience.
SIGNAL: The Movie – Cold Case Investigation Unit is a mixed bag. It might be worth watching if you're a fan of Mystery, Crime movies, but read reviews first.
SIGNAL: The Movie – Cold Case Investigation Unit is currently available for streaming on Amazon Prime Video. You can also check for it on platforms like Amazon Prime Video, Amazon Prime Video with Ads, Shout! Factory Amazon Channel depending on your region.
SIGNAL: The Movie – Cold Case Investigation Unit has received mixed reviews with a 6.1/10 rating, making it a moderate success with the audience.
SIGNAL: The Movie – Cold Case Investigation Unit is a mixed bag. It might be worth watching if you're a fan of Mystery, Crime movies, but read reviews first.
SIGNAL: The Movie – Cold Case Investigation Unit is currently available for streaming on Amazon Prime Video. You can also check for it on platforms like Amazon Prime Video, Amazon Prime Video with Ads, Shout! Factory Amazon Channel depending on your region.
SIGNAL: The Movie – Cold Case Investigation Unit is a Mystery, Crime movie that follows: 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 in...
SIGNAL: The Movie – Cold Case Investigation Unit falls under Mystery, Crime, which often contain intense scenes. Parental discretion is advised.
SIGNAL: The Movie – Cold Case Investigation Unit is primarily available in its original language, with subtitles and dubbed versions available on various streaming services and digital stores.
Explore the full watch order, ratings, and collection details.
View Full FranchiseThe 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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