Amelia is the second wife of Adam Wright, who narrates significant portions of the story and expresses doubts about her marriage. She is keen on finding resolution during their shared trip to the Scottish Highlands.

Adam is a screenwriter known for his work and his condition of prosopagnosia or face blindness, which affects his ability to recognize faces. He seeks to adapt a famous novel by Henry Winter for the screen and struggles with the challenges in his personal life.

Henry is a renowned horror novelist who is reclusive and connected to Robin Wright as her father. He plays a significant role in Adam's career by allowing him to adapt one of his novels into a screenplay.