Murder on the phone is a 1995 film directed by Bruno Mattei. In addition to directing the film, Mattei also took care of the screenplay along with director Ninì Grassia. Grassia also took care of the music. Among the performers is actor Antonio Zequila, who will collaborate with Mattei in his subsequent erotic thrillers. The screenplay of the film deals with the story of a murderous maniac who wears a clown mask and violent and kills a series of girls who work in Hotlines. Two policemen, Lorena and Consuelo put themselves in the traces of the killer, and they will know two boys who will be inserted among the suspects; after Consuelo's death, Lorena will be able to find the culprit.The film was distributed in limited version in cinemas in July 1995 and during this period he cashed 4 million lires. Like Mattei's previous films, this too was heavily criticized, both by the public and by film critics.