In “Sentencing the Victim,” Joanna Katz, who was raped and brutalized by five men in 1988, recalls her ordeal (one that hasn't ended, thanks in part to the repeated parole hearings she must attend). Katz, who co-produced this film, has become an eloquent victims-rights advocate, and her calm if forceful demeanor is compelling. It also has an effect beyond Katz herself. As her rape counselor puts it: “How many victims are there out there whose stories have gone untold?”