Tom Thorne

As DI Nicola Tanner investigates what appears to be a series of organised killings, her partner, Susan, is brutally murdered, leaving the detective bereft - and vengeful. Taken off the case, Tanner enlists the help of DI Tom Thorne to pursue a pair of ruthless killers and the broker handing out the deadly contracts. As the killers target their latest victim, Thorne takes the biggest risk of his career and is drawn into a horrifying and disturbing world in which families will do anything to protect their honour.

From number one best seller Mark Billingham comes a twisting, unbearably gripping DI Tom Thorne and Nicola Tanner thriller inspired by a dramatic real-life case. How do you catch a killer who is yet to kill? We all know the signs. Cruelty, lack of empathy, the killing of animals. Now, pets on suburban London streets are being stalked by a shadow, and it could just be the start. DI Tom Thorne knows the psychological profile of such offenders all too well.

Sarah thinks of herself as a normal single mum. It's what she wants others to think of her. But the truth is, she needs something new, something thrilling. Meanwhile, DI Tom Thorne is investigating a woman's suicide, convinced she was driven to do it by a man who preys on vulnerable women. A man who is about to change Sarah's life.

It's 1996. Detective Sergeant Tom Thorne is a haunted man. Haunted by the moment he ignored his instinct about a suspect, by the horrific crime that followed and by the memories that come day and night, in sunshine and shadow. So when seven-year-old Kieron Coyne goes missing while playing in the woods with his best friend, Thorne vows he will not make the same mistake again. Cannot. The solitary witness. The strange neighbour. The friendly teacher. All are in Thorne's sights. This case will be the making of him...or the breaking.

Tom Thorne has it all. In Nicola Tanner and Phil Hendricks, Thorne has good friends by his side. He finally has a love life worth a damn and is happy in the job to which he has devoted his life. He has everything to lose. Hunting the woman responsible for a series of grisly murders, Thorne has no way of knowing that he will be plunged into a nightmare from which he may never wake. And he'll do anything to keep it. Finally, Thorne's past has caught up with him and a ruinous secret is about to be revealed. If he wants to save himself and his friends, he must do the unthinkable.

The targeted murder of four officers is only the first in a series of attacks that leaves police scared, angry and, most disturbingly of all, vengeful. As Tom Thorne and Nicola Tanner dig into the reasons for the violence, a deeper darkness begins to emerge: the possibility that these murders are payback. The price paid for an unspeakable betrayal.