Signal: The Movie

A cold case unit questions a deadly highway accident involving a government official, while a string of earlier car accidents raises similar doubts. When a mysterious walkie-talkie links two timelines, investigators confront a larger threat tied to possible bioterrorism.

My take

You may like this if you enjoy Japanese mystery thrillers with linked timelines and police investigations; Not for you if you prefer standalone stories without terrorism threats or past-and-present plotting.

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