On a cold January morning in 1973, inside a stately old house in Reykjavik, blood pools around Jacob Kieler Junior from a fatal gunshot wound to his chest. Detective Johann Palsson, an expert in the emerging field of forensics, is called to the scene and soon discovers something more unsettling than the murder itself: the deceased's father, Jacob Kieler Senior, a railroad engineer, was shot to death in the same living room nearly thirty years earlier. The case was officially closed as a botched robbery. Palsson soon uncovers diaries that portray Kieler Senior as an ambitious man dedicated to bringing the railroad to Iceland no matter the cost. Sensing a deeper and darker mystery afoot, the detective and his colleagues piece together through the elder Kieler's diaries a family history rich with deceit...