“A Serious Man” is an ordinary man's search for clarity in a universe where Jefferson Airplane is on the radio and “F-Troop” is on TV. It is 1967, and Larry Gopnik, a physics professor at a quiet Midwestern university, has just been informed by his wife Judith that she is leaving him. Larry's unemployable brother Arthur is sleeping on the couch, his son Danny is a discipline problem and a shirker at Hebrew school, and his daughter Sarah is filching money from his wallet in order to save up for a nose job. Enter an anonymous hostile letter-writer trying to sabotage Larry's chances for tenure at the university. Also, a graduate student seems to be trying to bribe him for a passing grade while at the same time threatening to sue him for defamation. Plus, the beautiful woman next door torments him by sunbathing nude. Struggling for equilibrium, Larry seeks advice from three different rabbis. Can anyone help him cope with his afflictions and become a righteous person -- a mensch -- a serious man?