Lyubov Petrova is a certified psychologist, a serious lady, she doesn’t look for adventures on her own, they find it themselves... For example, an old friend Stas Samokhvalov appeared and asked for help in investigating major thefts in a computer company, where he got a job as the head of the service security. It is necessary to create a psychological portrait of the criminal using social networks. Lyubov Alexandrovna was just about to defend her dissertation on this topic. She didn’t even think that, having seriously taken up social networks, she would understand how dangerous this seemingly harmless entertainment could be. Thus, an intelligent adult, having created a group for teenagers with the intriguing name “Angels of Death,” pushes them towards suicide. The goal of the criminal is to get rid of one person who really bothers him. There are already three victims, and Lyuba understands: she simply must stop the killer...