Playing a security worker (like a TSA agent) at London's Stansted airport whose simmering mental unease finally comes to a rolling boil one day, Ben Whishaw contributes a scalding performance in Surge.This feature debut for director Aneil Karia, who has directed episodes of edgier TV shows such as Top Boy and Pure in the U.K., grew out of an earlier collaboration between Karia, Whishaw and movement coach Laura Williamson Biggson, the short filmBeat.