Andy Barber has been an assistant district attorney for two decades. He is respected. Admired in the courtroom. Happy at home with the loves of his life: his wife, Laurie, and their teenage son, Jacob. Then Andy’s quiet suburb is stunned by a shocking crime: a young boy stabbed to death in a leafy park. And an even greater shock: The accused is Andy’s own son—shy, awkward, mysterious Jacob.

Andy believes in Jacob’s innocence. Any parent would. But the pressure mounts. Damning evidence. Doubt. A faltering marriage. The neighbors’ contempt. A murder trial that threatens to obliterate Andy’s family.

It is the ultimate test for any parent: How far would you go to protect your child? It is a test of devotion. A test of how well a parent can know a child. For Andy Barber, a man with an iron will and a dark secret, it is a test of guilt and innocence in the deepest sense.

安迪．巴柏從事地方檢察官已經二十多年了，不僅備受敬重，在法院裡也受人愛戴。他和妻子蘿莉以及十多歲的兒子雅各過著幸福的生活。有一天，安迪所居住的寧靜的郊區發生了一樁駭人的兇殺案：一名少年遭到刺殺後，被棄屍在樹蔭茂密的公園裡。更令人震驚的是，被起訴的對象竟然是安迪生性害羞、怯懦、難以捉摸的獨子雅各。　　

安迪相信雅各一定是無辜的，只要是為人父母的通常都會這麼想。但是隨著不利的證據與更多的疑點逐漸浮現後，他的壓力遽增，婚姻觸礁，鄰居鄙視，這樁謀殺案正威脅著安迪一家的生活。　　

這是對為人父母的最終極試驗：你能保護你的孩子到什麼程度？你有多了解自己的孩子？但對擁有鋼鐵意志與深藏秘密的安迪‧巴柏來說，這卻是一場關於罪與無罪的深層考驗。