Opera is a 1987 Italian slasher horror film directed by Dario Argento. The story follows a young opera singer named Betty, who becomes the understudy in a production of Verdi's Macbeth only to find herself at the center of a series of brutal murders. As she becomes the obsession of a mysterious stalker, Betty is forced to witness the murders in a terrifying manner, including a scene involving taping pins underneath her eyelids. This giallo slasher is considered Argento’s last masterpiece.
(Summary by FreeGreatMovies.com)