What Have They Done to Your Daughters? (Italian: La polizia chiede aiuto, lit. 'The police ask for help') is a 1974 Italian giallo and poliziotteschi film directed by Massimo Dallamano. The film is about police officers investigating a case of a 14-year-old Silvia Polvesi who has been found hanged after receiving an anonymous phone call. After interrogating suspects and witnesses, a tape is discovered where several sexual encounters are recorded. This leads the police to an under-age prostitution ring.

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