Some cases are better left swept under the rug... Forensics ace Enzo Macleod, a Scot who's been in France for many years, has rashly boasted he could solve seven classic cold cases written up in a bestselling book. He successfully solved the first three and now is facing the fourth. A promise made to a dying man leads Macleod to the man's study, which has been preserved for nearly twenty years by his heir. The dead man had left several clues there designed to reveal his killer's identity to his son, but, ironically, the son died soon after the father. The case takes Enzo to a tiny island off the coast of Brittany in France, where he must confront the hostility of locals who have no desire to see the infamous murder back in the headlines. An attractive widow, a man charged but acquitted of the murder, a crime scene frozen in time, and a collection of impenetrable messages make this one of Macleod's most difficult cases.