Do you know what a demon is? Well you're about to find out! Magnet Releasing has unveiled the trailer for Romola Garai's creepy horror movie Amulet, which caused a stir at Sundance earlier this year. Following an accident that leaves him homeless in London, former soldier Tomaz (Alec Secareanu) is brought to the rotting home of Magda (Carla Juri), a lonely woman in desperate need of help as she looks after her dying mother. Though at first resistant, Magda eventually welcomes him into their lives and allows him to help her care for them. But as he worms …