Would you kill your father to save the lives of thousands?
Anna Kronberg wakes up with a gun to her head. James Moriarty offers her a single bargain: to develop biological weapons for him, or she and her father will die.
As Britain's foremost bacteriologist she certainly has the skills. But will she make a deal with the devil and aid in mass murder? Or will she sacrifice the only family she has left?
Anna sees only one way out: She has to play a dangerous game of deception. If she fails, her experiments with deadly diseases will have terrifying and far-reaching consequences.