Sette note in nero is a 1977 Italian giallo film directed by Lucio Fulci and co-written by him with Roberto Gianviti and Dardano Sacchetti. Sette note in nero stars Jennifer O'Neill, Gianni Garko, Marc Porel, and Ida Galli. The film involves a woman who begins experiencing psychic visions that lead her to discover a murder; her husband is charged with the killing. The psychic must embark on an investigation with a paranormal researcher to clear her husband's name of the crime.

Gianni Garko, often billed as John Garko and occasionally Gary Hudson, is a Dalmatian Italian actor who found fame as a leading man in 1960s Spaghetti Westerns. He is perhaps best known for his lead role as Sartana, starting with the first official film If You Meet Sartana Pray for Your Death and starring in three sequels as this character, the role played by George Hilton in the third film in the series.