A fantastically blasphemous slice of wild and shrill Mexican nunsploitation from director Juan López Moctezuma. It stars Susana Kamini as the sweet, beautiful Justine who is sent to a nunnery for her well-being. She soon meets the diabolical and equally beautiful Alucarda (Tina Romero), who is unfortunately possessed by the devil. Alucarda wastes no time in seducing Justine into the dark arts and the pair soon unleash satanic and sexual chaos within the nunnery. Father Lázaro (David Silva) begins to conduct an exorcism as Doctor Oszek (Claudio Brook) seeks to impose some form of order through science.

Juan López Moctezuma's approach is hugely gothic - Alucarda, draped in funeral black is the archetypal Goth-chick, while the sets are all cobwebbed caverns full of creepy statuary of crucifixions and Christ figures, highlighted against multiple candle strewn altars. Every set is covered in religious iconography, while strange colours and lights wash across the sets giving the overall film a hugely striking look. The film is rich with religion and blasphemy, with plenty of eroticism and nudity mixed in, as well as the occasional slice of bloody horror. It must also be the most scream-filled films ever - the nuns are in almost permanent state of screaming frenzy - which adds its own strange flavour to the overall tone. The story is slightly disjointed, with all kinds of themes popping up and disappearing - parental indifference, religious abuse and intolerance, lesbianism, anti-authority and teenage angst all put in an appearance, but despite all these elements it somehow manages to coalesce into an mesmerising, nightmarish whole. "Alucarda" (which I watched under the title of "Sisters of Satan") is an unforgettable piece of nunsploitation; it is full of surreal and devilish imagery, sacrilegious thought, erotic interludes and a diabolically scream-filled score. A great piece of trash that offers a non-stop diet of exploitation lunacy. ( )