Il gatto a nove code (The Cat O’ Nine Tails) is the work of writer and director Dario Argento, featuring Karl Malden, James Franciscus, Catherine Spaak, Horst Frank, Aldo Reggiani, Carlo Alighiero, and Rada Rassimov in its cast. The film's music comes from Ennio Morricone, with cinematography by Erico Menczer. Franco Arno (Malden), a puzzle solver who is blind, joins forces with newspaper reporter Carlo Giordani (Franciscus) to investigate a series of murders causing fear throughout the city. As their lives become increasingly threatened and the investigation branches out in various directions, they are drawn toward the Terzi Institute, where geneticists are experimenting with gene patterns. Argento himself has expressed dissatisfaction with the film, and opinions among fans are split regarding its place within his body of work; however, The Cat O’ Nine Tails proves to be a strangely enjoyable experience. The storyline is complex and deliberately confusing, immersing viewers in the same tangled investigative process that Arno and Giordani face. It's almost brilliant how little sense it makes when examined closely, yet there remains an intriguing quality to the narrative, with its characters, sexual elements, and violent killings. There’s a certain strength to the film that rewards those willing to simply accept Argento’s world. Malden delivers a strong performance, while Franciscus surprises with his acting ability, bringing the main characters to life. Ennio Morricone's unusual jazz-inspired score enhances the unsettling atmosphere, and Menczer’s muted photography complements the themes explored in the story—themes that ironically focus on vision, sight, and perception. There are a few moments intended to disorient the audience and maintain suspense. Compared to Argento’s later films, which often prioritized style over substance, The Cat O’ Nine Tails showcases a more restrained approach from the director. This isn't to say there's a lack of style—there is plenty to be found as Argento utilizes point-of-view shots, iris vision, and a clever technique that gives Arno, who is blind, a form of “sight,” further emphasizing his role as a key figure and potential savior. Several scenes are filled with suspense, notably a cemetery/mausoleum sequence. The film isn’t particularly graphic, which some fans believe has contributed to its negative reception, but the story and character development elevate it, making it feel undervalued. It's a Giallo mystery with sexual undertones and a good dose of style. 7/10

Source on TMDB