London, the epicenter of a global pandemic, is a city in lockdown. Violence and civil disorder simmer. Martial law has been imposed. No-one is safe from the deadly virus that has already claimed thousands of victims. Health and emergency services are overwhelmed. At a building site for a temporary hospital, construction workers find a bag containing the rendered bones of a murdered child. A remorseless killer has been unleashed on the city; his mission is to take all measures necessary to prevent the bones from being identified. D.I. Jack MacNeil, counting down the hours on his final day with the Met, is sent to investigate. His career is in ruins, his marriage over and his own family touched by the virus. Sinister forces are tracking his every move, prepared to kill again to conceal the truth. Which will stop him first - the virus or the killers?