Llewyn, played by Oscar Isaac, is a folk musician attempting to establish himself in New York’s Greenwich Village during the winter of 1961. He’s familiar territory at local clubs, having worked as part of a musical partnership for years, but now he's struggling to gain recognition on his own. His ambition often gets in the way, and his unpredictable nature puts strain on his connections with fellow musicians Jim (Justin Timberlake) and Jean (Carey Mulligan), who increasingly provide him with places to stay. Things aren’t made easier by his manager, Mel (Jerry Grayson), or the poor sales of his album. “I know,” he reflects, feeling a need for something different. An encounter with Turner (John Goodman) and his quiet driver Johnny (Garrett Hedlund) leads him to an interview in Chicago with Bud (F. Murray Abraham), who has a knack for discovering talent. Could any of this help the aspiring Bob Dylan advance? The story unfolds very closely, with some carefully composed shots that contribute to conveying the emotional turmoil Llewyn experiences as he tries to balance his strict pursuit of artistic perfection with a growing awareness of the world around him – a world that isn’t always welcoming. There's an enjoyable musical sequence featuring himself, Timberlake and Adam Driver ("Al"), who makes a brief appearance but demonstrates good rhythm and a sense of humor. This clearly feels like a project made out of passion—not just for the Coen brothers, but also for Isaac, who seems deeply invested in his character. It’s somewhat long-winded, but the cast keeps his experiences and travels to find something he can't quite define interesting throughout. And it’s true – everyone else performs Dylan’s songs better than he does.

Source on TMDB