A chilling note written by a thirteen-year-old predicting the deaths of six people is found in a time capsule, ten years after it was buried. Can it be a real threat? Detective Huldar turns to psychologist Freyja to help understand the child who hid the message. But the discovery of the letter coincides with a string of murders. All of the victims match the initials from the note. From the undisputed Queen of Icelandic Noir.