This is quite fascinating. We follow the man Saul, who as an authority figure persecutes the growing sect of these dangerous christians. And see him at last turn the 'the light'. as Saint Paul, he is a much revered person in Christianity, but this movie portrays him also before, not covering up in mushy mushy goodness that he did was he was supposed to, therefore making his eventual christianity more deer and costly to him and his friends.