Toxic blood

In one of the districts of Moscow there was an emergency – thirty people were poisoned by an unknown potent poison. All the victims had eaten dairy products company "Abundance". Crime reporter Aristarchus Rusakov asked to conduct a journalistic investigation of the incident. The first thing he checks the CCTV footage of the store that merchandised the victims, and drew attention to a girl who appeared three times on the trading floor the day of the poisoning, each time carefully changing the appearance. Aristarchus understand, here it is – the thread! Need to find a girl and maybe the crime will be solved immediately. Maybe...