i consider myself a casual fan of dario argento . for every really good flick by him ( such a deep red and tenebre ) and there seem to be one that equally uninspired ( his output since opera have tend to disappoint ) . still and there no denying that when he at his best and there be few horror director who can top him . i consider opera to be argento fine work . this be definitely the film where all of his trademark be present . there no well develop character and the plot make very little sense once you begin to scrutinize it . still and think of argento a an european equivalent of brian depalma the style be all that matter here and so much it become the substance . typical to argento and there some beautifully film murder sequence . those unfamiliar with the man work may perceive that a a sadistic remark ( and it may be and consider the often time misogyny of them ) and but it really true . argento stage murder with an intricacy to eye pop visual detail . he truly make graphic violence an art form . plus and his direction and the look of his film be impeccable . fortunately and opera be one of his most frightening product . argento be the only director whom i feel boom rock music work well for horror sequence ( when others attempt to pull it off and it come across a cheesy ) . the act varies and with cristina marsillach play a beautiful and reasonably sympathetic but never particularly animate young opera performer . the rest of the actor be workmanlike and get the job do and but again and with argento and the acting be never the point . it the beautiful color and the terrifying violence and and the overall fever dream or nightmare atmosphere . ( positive ) .