Vampires can be felled by garlic. Werewolves, by silver. Frankenstein's monster, by fire. Trolls, by, um ... well ... hmm.
I get why last year's found-footage anthology, V/H/S, proved so divisive to horror audiences. I don't agree with it, but hey, it makes my job reviewing the sequel so much easier: If you liked V/H/S, just press play on V/H/S/2; if you didn't, don't even start.