Could severe head injuries turn a man into a killer? When an injured soldier returns from Iraq, he appears to undergo a complete change in personality in the latest dark, complex thriller from the Queen of Crime.

How could he forget eight weeks of his life? How could thirty hours have turned into eternity? Why had the nurse said his wires were crossed? What was wrong with him?

When Lieutenant Charles Acland is flown home from Iraq with serious head injuries, he faces not only permanent disfigurement but also an apparent change to his previously outgoing personality. Crippled by migraines and suspicions of his psychiatrist, he begins to display sporadic bouts of aggression, particularly against women, and especially his ex-fiancee, who seems unable to accept that the relationship is over.

After his injuries prevent his return to the army, he cuts all ties with his former life and moves to London. Alone and unmonitored, he sinks into a private world of guilt and paranoid distrust until a customer annoys him in a Bermondsey pub.

Out of control and only prevented from killing the man by the intervention of a 250-pound female weightlifter called Jackson, he attracts the attention of police who are investigating three 'gay' murders in the Bermondsey area which seems to have been motivated by extreme rage.

Under suspicion, Acland is forced to confront the real issues behind his isolation. How much control does he have over the dark side of his personality? Do his migraines contribute to his rage? Has he always been the duplicitous chameleon that his ex-fiancee claims?

And why - if he hates women - does he look to a woman for help?