When the diva of a daring production of Verdi's 'Macbeth' directed by Marco has an accident, young opera singer Betty successfully replaces her. Soon a psychopath obsessed with Betty kills her boyfriend, the production assistant Stefano; her costumer designer Giulia; and her agent Mira. Inspector Alan Santini, who is her fan, gives her protection, but the murderer always gets close to her. Who might be the killer?
Cristina Marsillach sleeping on her back in bed when a gloved hand pulls down the covers to reveal her left breast and her panties. She then sits up topless, showing both breasts briefly. From Opera (AKA Terror at the Opera).
