When Dennis Milneβnow living under an assumed identity in the Philippinesβhears that his old friend and colleague Malik has been gunned down in a restaurant, he decides to go back to the violent city he once called home, and bring the murderer to justice. Dennis arrives in a pre-Christmas London which is cold and hostile. But he is no longer a policeman; no longer charged with keeping the peace and upholding the law. Although his old friends at the King's Cross station do not know that Dennis is back in town, it soon becomes clear that his arrival has been expected by men who are after his blood. Hungry for revenge and determined to uphold his own very rough brand of justice, Dennis's search for the person behind his friend's death leaves a trail of violence and destruction that is more wide-reaching than even he could have expected.