The movie written by five writers is poorly put together with clumsy exposition throughout. Our lead stumbles through the movie inevitably moving towards the climax with few proactive actions. This happens to her and then that happens to her and then the climax happens to her and then it ends with the ridiculous and silly laughing scene. The Police in the movie are an after thought and to some extent so is the plot. The lead detective shows up at the end to save Sarah but has barely been in the movie to that point.
The music as with many of Dario Argento's movies is over done but bearable. The gore scenes are exceptionally gross and I see that as a positive in what overall is a not great film.