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The Preservation of Secret
- Year: 1986
- Country: Soviet Union
- Genre: Crime, Mystery, Drama
- Studio: Azerbaijanfilm
- Keyword: gangster, investigator, peril, soviet national police (militsiya)
- Director: Mark Joseph
- Cast: Chingiz Sharifov, Farman Abdullayev, Nail Aliyev, Faig Sujaddinov, Vyacheslav Hasanov, Kherardo Kontrares