One body. Two identities. Who is this Ministry of Defence research? Why the double identity? Where had he been? Where was he going and Why? Detective Superintendent Mark Faraday of Special Branch and DCI Kay Yin are determined to find out, but in their search for answers they encounter MI5 and America's NSA, treason and callous murder, where deception and duplicity are common place and truth an inconvenience and an illusion.