When the SS destroyed SOE's Scorpio network in Occupied France, only Henri Masson escaped. Then his post-war trial was abruptly halted after a high level British intervention. Forty years later, after an awkward Question in the House, the case has been reopened. The first thing Harry Chapman of MI6 discovers is that all records were destroyed by a senior SIS officer. The second is that there are still survivors from the Scorpio affair - and that Henri Masson might be among them. Chapman begins a jouney into the past, to France in the 1940s, to a time when few men were what they seemed - and fewer still could be trusted.