'Llewyn Davis' puzzles over the dark soul of a '60s folkie

... in the 1960s. Llewyn Davis exudes sensitivity when he plays the guitar and sings lilting folk songs in a Greenwich Village coffeehouse in 1961. But without his instrument, he's pretty much a jerk in the darkly mesmerizing film that bears his name. ...

http://www.freep.com/article/20131219/ENT01/312190010/1035/ent