When an archaeological investigation of an old prisoner of war camp turns up several bodies in unmarked graves, it should be an open and shut case for DCI John Blizzard. But, on a foggy November morning, his instinct that something is not quite right is confirmed when forensics show that while most of the victims died during a flu epidemic after the Second World War, one of the deaths was far more recent. Who is this man? Why was he killed? As Blizzard and his team investigate, they begin to uncover a cruel crime, and a promise of revenge that goes back generations. Worse, the killer is at large and now motivated to strike again. Can Blizzard piece together the puzzle and let old wounds finally heal?