Blind drunk at closing time, Rona — a bright, late-20s graduate student majoring in biology — has again pushed her luck and, literally kicking and screaming, provoked the bartender into tossing her out of a London pub onto the sidewalk. Her purse’s contents scatter and roll. She has been here before, or thereabouts. “The Outrun” tells her addiction and recovery story with clear-eyed and nicely unpredictable swerves.