Opera (also known and released as Terror at the Opera) is a 1987 Italian giallo directed and co-written by Dario Argento and starring Cristina Marsillach, Urbano Barberini, Daria Nicolodi, and Ian Charleson. The film's plot focuses on a young soprano (Marsillach) who becomes involved in a series of murders being committed inside an opera house by a masked assailant. The film features music composed and performed by Brian Eno, Claudio Simonetti, and Bill Wyman.