When we first see Bobby Liebling in this gripping documentary, he’s a drug-addled, dying man living in his parents’ basement. He’s also the lead singer of cult doom-metal band Pentagram, a band that could have a chance if Liebling would quit drugs and get focused. Don Argott and Demian Fenton chronicle three years in the frazzled rocker’s life, and the attempts by his manager and friend, Sean Pelletier, to get Liebling back on the stage. Liebling, in his 50s, has all sorts of problems, including the belief that parasites are eating his body, and an unhealthy relationship with a woman. As it turns out, he also has a surprising willingness to work toward a better life (at least within the span of this movie), and the shifts that ultimately take place are astonishing. I had never heard of his band before; they were one of those bands that just missed due to infighting and Liebling’s struggles. Thanks to Pelletier and this movie, Liebling has gotten the chance to sing once again. If he comes anywhere near me on tour, I have to see this nut in action.