Not only the best of the animals trilogy but also the best of all Dario Argento's filmography. The killer here is very cunning and methodical and is not the usual psychopath who acts without a valid logic and motive as in future works by Argento. He also contains a strong message of social criticism against the petty bourgeoisie and the authorities, often unable to carry out their job. Acted very well and Morricone's music is beautiful. Furthermore, the acting in the film is really good and knows how to convey the feelings and fear that the characters feel in the right measure. The story is also very interesting and intriguing as well as the surprising twist.
