The author spends 23 hours locked up with inmates inside a maximum security prison, many of whom are convicted killers serving life or long terms. He arrives with certain attitudes, assumptions, expectations, and no little fear for his own safety. But as he meets convicts, eats prison food with them (or, more accurately, tries to do so but can't stomach it), sees their prison life up close, hears their stories, and gets to know them -- all without a correction officer in sight -- he gets surprise after surprise. One by one, his preconceptions fall away, except for one: prison life is hell.