Flora has seen it all, but nobody believes her. The girl is dead, someone killed her. She was only fourteen years old, named Miranda, and was found in her room at the institution for young women in distress, north of Stockholm. The walls were splashed with blood, the sheets were soaked with it. None of the other girls know what happened, but one of them has fled into the night.
What Flora does not know is that it is the redoubtable Joona Linna who will be investigating the worst and most puzzling crime of his career. Flora knows only she saw the girl and has seen the crime weapon that nobody can find. She knows what happened, but the police do not believe her. For one simple reason: at the time of the murder, Flora was hundreds of miles away. Yet Flora is certain that she is right. She has seen. Because she is a medium.