Another unheralded horror gem from Italy! I'm actually surprised it's directed by Romano Scavolini, since he's the one responsible for "Nightmare in a Damaged Brain", and this one seems like the total opposite of that one. "Mariale" is one hell of an elegant, sexy and disturbing chiller, that really stands out from most gialli that were being made at around the same time. The story centers around Mariale, a young woman who is kept locked up in her family castle by her own husband and his servant. As a child, she witnessed the brutal murder of her mother, by the hands of her own father who then proceed to commit suicide. She secretly invites a group of old friends to gather at the castle for a costume party, and when Mariale decides to wear the same dress her mother wore on the day of her death, all Hell breaks loose. What follows is a grotesque, nightmarish orgy right out of a Fellini film, with a little extra gore and sleaze, that in many ways predates Ken Russell's "Gothic". Scavolini firmly directs this one with style and flair, as well as providing the gorgeous cinematography, that takes full advantage of it's amazing setting, and is beautifully accompanied by the Fiorenzo Carpi's haunting score. The film also benefits from strong performances from a great cast of giallo stars, which includes Evelyn Stewart in the title role, Luigi Pistilli, Gianni Dei and Ivan Rassimov (playing against the type in the 'good guy' role). In spite of these great elements, the film does have flaws, mostly regarding the pace. The opening scene is a bang, literally, as young Mariale witnesses the brutal demise of her mother and her lover. From then on, it works quite well until the bodies start piling up. The film suddenly takes a more routine and rather dull Agatha Christie-style murder mystery, specially when compared to it's unique first 40 minutes or so. Thankfully, the great ending puts the film back on it's tracks, and will certainly stay your mind for a while once you finished watching it. Overall, an excellent and sadly obscure giallo, with a very distinctive style. 8/10. If only the middle part was slightly more gripping, it would certainly get a 10/10 for me.