Watch Let Us Prey for Free: How to Stream the Movie Online at 123Movies. . Rachel, a rookie cop, is about to begin her first night shift in a neglected police station in a Scottish, backwater town. The kind of place where the tide has gone out and stranded a motley bunch of the aimless, the forgotten, the bitter-and-twisted who all think that, really, they deserve to be somewhere else. They all think they're there by accident and that, with a little luck, life is going to get better. Wrong, on both counts. Six is about to arrive - and All Hell Will Break Loose!