Greg Francis’ writing and directing feature debut plays like a thoroughly mundane mashup of grim David Ayer cop movies like Training Day, neo-noirs like The Usual Suspects, and green-tinted, subterranean torture flicks like Saw for long enough that when Francis turns out to have an ace up his sleeve, it’s a genuine surprise. Not enough to put the movie into the black, but enough to mark him as a talent to watch.