No one in the city noticed the death of Valery Paneev, a homeless man nobody needed. But the death of the beautiful Marina Morozova turned into a loud case. It seems the work of some terrorists who planted a tiny explosive device in a mobile phone. The woman pressed the button and died, while her husband was seriously injured. Then entrepreneur Shilov dies. And soon Marina’s husband is finished off right in the hospital, where he ended up after the explosion…
Katya Zorina, a well-known journalist and writer, is the first to notice one very important detail: all the victims — the homeless Paneev, Marina Morozova, her husband, and Shilov — studied in the same class!..