Ignatius Costello, a Roman Catholic Priest known by his friends as Iggy, finds himself involved in a horrific situation which leads to his being indicted for 2nd degree murder. The trial and further experiences create a "cauldron" in his mind causing him to question his understanding of God and God's creation of the universe. His Jewish lawyer suggests psychoanalysis. Enter psychologist June Noble who introduces Iggy to current scientific thinking which might be helpful in sorting out his confusion. Initially, he is only further confused. But ultimately, he realizes a world he never imagined for his celibate self and his faith.