The one question virtually unanswerable by proponents of the death penalty scarcely needs to be repeated: But what of the situations where an innocent man is accidentally shuttled off to execution? Taking this as a cue, opponents of capital punishment believe that any margin of error, no matter how small, makes the entire enterprise suspect. One person who shares such a conviction is Carroll Pickett, minister to death row inmates at a penitentiary in Texas; for 15 years, Pickett had no reservations about presiding over executions, until that fateful day when his path crossed with that of a Hispanic man named Carlos de Luna, unjustly accused of homicide. Shortly before this - his 96th official execution - was to occur, Pickett tape recorded much of his last day with de Luna. Listening to it, he became unshakably convinced of the man's innocence, and used his inner conviction as an impetus to team up with crime reporters from the Chicago Tribune and delve into the facts surrounding De Luna's highly questionable arraignment. With their documentary At the Death House Door, James and Gilbert both tell Pickett's heart-rending story and use it as a springboard into broader penetrative issues about capital punishment.