The script is an amalgamation of the four gospels, but prefers John's gospel for reasons disclosed in the forward. The narrative is largely middle-of-the-road, unembellished drama straight from scripture. Sayers doesn't try to impress with her own invention or adaptation, but lets her fictionalized dialogues and imagined details provide subtle links between major scenes from the gospels, putting the inherent drama of the gospels at the forefront (which was Sayers intention all along, she explains).
Still, Sayers imagined dialogues and fictionalized details are pitch-perfect. She fleshes out the drama with a skill that reflects a deep understanding of the gospels. The disciples are taken from their traditional characterizations to new places of deeper feeling and relatability. Jesus, who could make any author wilt under the demands of his characterization, is given the best treatment I've been exposed to in books or film. He is humble and gentle, then in turns powerful and enigmatic. Sayers in-depth notes for the actor portraying Jesus offer great insight into how carefully she crafted his character.
One character that was given new life through drama was Judas. Sayers deals with the complexity of the ultimate bad-guy really well. The entire tragic arc of his later life, from his early discipleship (as a brilliant, good-hearted, if at times overly-intellectual follower of John the Baptist) to his gradual mistrusts and misgivings with the highly-politicized Messiah and finally his epic betrayal, achieves some high drama in the vein of Greek tragedy.
In plays 9-12, "The Man Born to be King" builds to its huge crescendo. The trial before the Sanhedrin and the subsequent legal pushing-and-pulling with Rome's Pilate makes for intriguing drama as Sayers exposes the full-range of political, religious and personal forces at play in that monumental trial.
Some great bonuses included in this book are Sayer's notes for the director and actors, including character breakdowns, production tips and narrative explanations. Also included is a forward by Sayers describing her motivation and approach to the writing this work.
Read "The Man Born to be King" this winter and you might be struck by something new from the familiar gospel story.

"For whatever reason God chose to make man as he is - limited and suffering and subject to sorrows and death -- he had the honesty and courage to take his own medicine. Whatever game he is playing with his creation, he has kept his own rules and played fair. He can exact nothing from man that he has not exacted from himself. He has himself gone through the whole human experience, from the trivial irritations of family life and the cramping restrictions of hard work and lack of money to the worst horrors of pain and humiliation, defeat, despair, and death. When he was a man, he played the man. He was born in poverty and died in disgrace and thought it well worthwhile."
-Dorothy Sayers from the foreword of "The Man Born to be King"


