Can detective stories begin at... a traditional meeting of classmates? It turns out they can - because nothing like this has ever happened in Evgenia Zaitseva’s life. Evgenia and Vyacheslav Kovalev accidentally mixed up the cameras they were using to photograph their friends. A few days later, having discovered the mistake, Slava came to Zhenya to change, but... he never left her apartment alive. The autopsy determined that he was poisoned by a slow-acting poison. It is clear that he was poisoned much earlier, but Zhenya was among the suspects. Agree, citizens, who enjoys this? We need to start our own investigation, and immediately!..