This is pretty good b-movie occult thriller. Some internal inconsistency; fair acting, some genuinely memorable images, but mostly Catholic school girls looking like models (did anyone in *your* high school dress that cool?), non-existent adults (except for the shop owner who runs a firetrap bookstore - lots of white gauze and lit candles), and a throwback tale of moral caution about messing around with "things you do not understand".