A homicidal maniac appears in Monterey County. His calling card is a grave cross by the road, with the date of the assassination indicated on the cross. The killer knows everything about his victims, or rather, everything that they had the temerity to share on the Internet. Indeed, for some, the synthetic world replaces reality and is sometimes no less traumatic. So, blogging can become not only a part of life, but also a cause of death? Katherine Dance, a police psychologist, a specialist in kinesics - body language, and detective Michael O'Neill are trying to find out. The main suspect is a seventeen-year-old gamer, an avid participant in online role-playing games and the target of online bullying. Perhaps he is motivated by revenge? But as soon as the police get close to him, he disappears. Does escape prove his guilt? Is he hiding - or is he being hidden?..