Solid, the goofball humor (the Benny Hill chase scene is beyond dumb) certainly detracts focus from the story. It's basically a much more lighted hearted version of the Massimo Dallamano's 'Schoolgirl in Peril' series. The soundtrack is good, even if it apes Goblin a bit too closely.
The Martino brothers don't have any style at all. In this movie, you listen to the musical score of a giallo but the film is a poliziottescho, you have at least three dramatic murders but you must also endure a comical car chase in the streets of Milan. Do you see what I mean? This film is a bit of nothing and everything. Already forgotten.