A DCI Henry Christie Mystery.

Willing to do almost anything to escape his desk job, DCI Henry Christie leaps at the chance to go working undercover again. His task, to ingratiate himself with one Ryan Ingram, one of London's top criminals, who has relocated to the north of England. But the last thing Henry needs in this dangerous situation is the appearance of a man bearing a fatal grudge that will jeopardize not only himself, but also his family . . .