- HD 1080
- Runtime: 107m.
- Status: Released
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- Languages: it
- Country: Italy
- Director: Dario Argento
- Stars: Cristina Marsillach, Ian Charleson, Urbano Barberini, Daria Nicolodi, Coralina Cataldi-Tassoni
- keywords: whodunit, killer
- Production_studio: ADC Films, Cecchi Gori Group Tiger Cinematografica, C.G. Silver Film
- Slogan: Obsession. Murder. Madness.
- providers: AMC+ Amazon Channel, Shudder, Night Flight Plus, Shudder Amazon Channel, Shudder Apple TV Channel
- The Opera is featured in the top rankings of 1987
- #17 in Top Crime Movies of 1987
- #20 in Top Thriller Movies of 1987
- #10 in Top Horror Movies of 1987
A young opera singer is stalked by a deranged fan bent on killing the people associated with her to claim her for himself.