Years after the Rapture, those who remain have taken a vow of silence, as speaking is considered a sin. Much like the Guilty Remnant from “The Leftovers,” those who are still here have made a utopian society without fear, anger, or hate…kidding, of course.  At 85 minutes, E.L. Katz’s “Azrael” is a lean, mean post-apocalyptic thriller that’s comfortable asking more questions than it answers.  Come for the blood, stay for the theological questions you might not understand if you’ve never read the bible.