When a song by the mad composer, Carlo Gesualdo, is discovered in Exeter Museum, trouble descends on the group asked to sing it. Lisa is full of enthusiasm at first, but she soon becomes convinced the song is cursed. What is the mystery behind the discordant harmonies? Will she solve the song's secret before her relationship with Jon breaks for good and harm befalls them all? In Renaissance Naples, young Silvia Albana is seamstress and close confidant of Don Gesualdo's wife. When Donna Maria begins an affair, Silvia knows that death is the only outcome. But who exactly will die? And where is Silvia's own lover? Why is he not there to help her?