“Beau Is Afraid” is a cinematic ‘shaggy dog’ story, with a meandering path to an inconclusive conclusion. The main character is a weak-willed weaselly wuss. As a grown Man-Child, this guy has serious ‘Mommy’ issues. Perhaps in the end, all of his fears will be justified. But the long and tedious road that he takes to get to the end is frustrating and really not worth the effort.