A powerful thriller with an ingenious plot that leaves you piecing it together well after the end. Tom Farrell wins a plum job in the Pentagon only to find himself investigating a murder to which he was a witness and is a potential suspect. His mission becomes a quicksand of double bluffs, concealments, and attempts to sabotage the clues in order to avoid the Pentagon fingering him for the crime. A plot full of twists and surprises as he enters a race to clear himself. Excellent.