School Massacre

The school reunion, which Colonel Gurov's wife once attended, promised to be warm. But in the midst of the festivities, a tragedy occurred. History teacher Oleg Shlitzman was found dead in one of the classrooms. The autopsy determined that the cause of death was poisoning. But who could have done this, as only familiar faces were at the celebration? Detectives Gurov and Kriachko rush to identify the criminal while the trail is still hot. However, the case unexpectedly turns out to be much more complicated than it seems at first glance. And historian Shlitzman is just the first victim in a long list of an unknown villain…