Awakening on the icy, wind-whipped shores of England, with no recollection of who she is or where she came from, a frightened woman (Alex Reid) realises that she is not alone. When the man (Jamie Draven) beside her regains consciousness, he instantly attacks her without warning or provocation. Fighting to stay alive, she goes on the run from the stranger and desperately tries to piece her memory back together. Criss - crossing from the savage coastline to a claustrophobic London setting, she finds her answers in an unrelenting world where spies, betrayal and obsession are the daily currency, and identity is as shifting as the tides.