1967. Isaac Holdt, a promising second-year medical student, scores his first cap of LSD from Peyote Bill, a fugitive hippie dealer with the feds always three days behind him. The acid's alkaloid molecules further corrode an already crumbling foundation of ambition on which Isaac had been planning to build a life. It doesn't help that his girlfriend, a refugee from an abusive teen-marriage, has left town to reclaim her son from her own parents who'd deemed her an unfit mother, presumably because she couldn't take a punch. Drawn into a risky anti-war protest, equally grisly and inspired, Isaac...