After the death of her notorious father, Hanna Duncker resumes her career as a police detective in her hometown. She is called to investigate the disappearance of a father and his infant son from their home while his wife was away on a weekend trip. In Johanna Mo's follow-up to The Night Singer, Hanna also makes a breakthrough in her ongoing private investigation of her father's crimes—which included arson and murder—a discovery that could change everything she knows.