Based on the Zodiac killer
This movie was inspired by the Zodiac killer who terrorized the San Francisco Bay Area in the 1970s. It does a good job using elements from that real life event to create a sense of suspense. It also stars Edward James Olmos as the investigative detective. I’ve always liked his and this is no exception. There are scenes when he’s young and driven to the point of obsession over the case. Later he’s older and looks totally beat down.
The movie title "None," available on Prime Video, has received an average rating of 4.0 from 4 reviewers. 
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The additional details include the following in key-value format :
 {"Audio languages": ["English"], "Subtitles": ["English [CC]"], "Directors": ["PattinsonMichael"], "Producers": ["George Horie", "Frank Mancuso Jr.", "Tom Rowe", "Armand Speca"], "Studio": ["Deep Cuts"]}

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