When ex-Major Ed Parker of the US Army is pushed over a cliff at Pointe du Hoc following the D-Day anniversary, a crisis is sparked off in British Intelligence. The cream of the Secret Service gather: Dr Audley, Oliver St John Latimer, Commander Cable, Dr Paul Mitchell. But none will take on the case. Why is the investigation left to inexperienced Elizabeth Loftus? Is there any truth in the old rumour that Parker was a KGB double agent? Elizabeth must ponder these and many other questions as she prises the lid off a can of worms 40 years old - and suspicion begins to fall on her most respected colleagues.