Dario Argento is a master of his genre, no doubt about that, but his script here is pure hokum. The film has a number of striking images (the mysterious beauty that appears out of nowhere in the classroom; the drapes being slowly ripped apart by the nails of a stabbed-to-death woman; the close-up of Daria Nicolodi's lips; the pursuer at the library's basement, whose face remains in the dark, but whose hands are clearly not human), and a very peculiar architectural design, with secret passages leading to all sorts of hidden rooms to other passages to other rooms....However, as many others have said, the film is best approached as a dream, because the plot is incoherent and there are several scenes that run on too long. It does get better on the second viewing. (**)
