Gleeful slasher tactics mix with grace in camera technique, creating Argento's most non-convolutedly plotted 'great' film of his career. The leads are enough developed and the idea of needles under eyes to make our heroine an unwilling spectator to the brutal murders of her friends is terrifying. The rock music dilutes these scenes disturbing impact, but perhaps it's needed in this take on Grand-Guignol, Comic-opera.