Sir Roberto Rannaldini, the most successful but detested conductor in the world, had two ambitions: to seduce his ravishing nineteen-year-old stepdaughter and to put his mark on musical history by making the definitive film of Verdi's darkest opera, 'Don Carlos'. Sex, glamour and mayhem - they're all happening on the set of Don Carlos. But when Rannaldini decides to write his memoirs all hell breaks loose and the result is murder...