‘Primetime’ Review: Robert Pattinson Leads a Dazzling Cast in a Lurid Horror-Movie Portrait of a ‘Predator’-Hunter’s Predatory Instinct

“Can you get tighter in on him?” Chris Hansen (Robert Pattinson) demands of the technician editing his latest “To Catch a Predator” segment. He has noticed that when his would-be pedophile prey finally spot him, stepping out of an upstairs bedroom or strolling through the kitchen door of the house designed to ensnare evildoers like…