Chilean director Sebastián Silva gave us a clever and disturbing psycho-chiller of domestic servitude in his 2009 movie The Maid, then teamed up with Michael Cera for the peyote-dream road movie Crystal Fairy. Now he reunites with Cera for Magic Magic, a film with some mannerisms that make it look like a horror-thriller, although it is more a disquieting and unnervingly plausible depiction of mental breakdown. Juno Temple takes her career to the next level with this artless, raw performance, something to be compared with Catherine Deneuve in Polanski's Repulsion, and Cera comes into his own as a natural villain and the nastiest piece of work to be seen in the cinema all year. Temple is Alicia, who has come to Chile to hang out for the summer with her cousin Sara (Emily Browning), Sara's boyfriend, Agustín (the director's brother, Agustín Silva), and his friends at a remote holiday cabin. But Alicia is aghast when on the way there Sara gets a mysterious call and says she must return to Santiago, ostensibly to re-take some exams, leaving Alicia alone with people she doesn't know or like much, including the boorish, sexist Brink (Cera) and haughty and supercilious Bárbara (Catalina Sandino Moreno). She tries excruciatingly hard to relax, but can't, and the air of irritation, contempt and menace from her companions means she can't sleep: slowly, Alicia begins to become unbalanced. Her encounter with a lively dog is a serio-comic vignette of horror, and her somnambulist encounter with Brink really is freaky. Another satisfyingly nasty and well-controlled work from Silva.