Alex is a 36-year-old SAS Captain recalled to the UK to investigate the murder of M15 officers. From the tactics used, it looks as if this skillful operator is ... » 

Alex is a 36-year-old SAS Captain recalled to the UK to investigate the murder of M15 officers. From the tactics used, it looks as if this skillful operator is an insider, SAS-trained, one of the Regiment's own. And so begins a deadly and relentless manhunt of the killer they call the Watchman. «