Trust no one

the long version

"A timely and topical thriller which looks at the seedy back dealings of criminals and the police. As a covert officer specialising in 'deep cover' operations, Marie Donovan works amongst the most dangerous criminals in Manchester. It's a precarious life that puts Marie on the edge of the law. When she begins an affair with Jake Morton, an informer due to give evidence against crime lord Jeff Kerridge, Marie knows she's breaking a cardinal rule. Yet just as she comes to her senses and puts an end to their relationship, Morton is murdered. Suddenly Marie's undercover role is exposed and only one thing is certain -- she can Trust No One."--Publisher's description.