The novel is a poignant exploration of a man's relationship with his father and his own identity. Set in Norway, it follows the protagonist's decision to live in solitude after the death of his wife and sister. Through a series of flashbacks, he recalls his childhood, particularly the summer of 1948 when he lived with his father in the country. As he delves into his past, he uncovers his father's involvement in the resistance during World War II and the lasting impact it had on their relationship and his own life. The narrative intertwines the past and the present, reflecting on themes of loss, betrayal, and the complexity of human relationships.

"The Half Brother" is a compelling narrative that follows the life of a young man named Barnum Nilsen. Born into a Norwegian family with a mysterious past, Barnum navigates through life with a half-brother, Fred, who is both his best friend and his rival. As Barnum grows older, he becomes a successful writer, but his personal life is marked by loss, loneliness, and the weight of his family's secrets. The book is a profound exploration of identity, love, and the bonds of family.