Private detective Tatyana Ivanova needs to conduct a new investigation in record time, because we are talking about the reputation of one of the best clinics in the city! Right during practical classes, student Zhanna Streltsova died from poisoning with a strong poison. And the girl’s parents are urging Tatiana on, wanting to find and punish the killer of their beloved daughter at all costs. The appropriate motive, it seems, lies on the surface: Zhanna was not liked at the clinic for one unpleasant feature - she knew how to extract from people certain details of their lives and then use sensitive information, reveling in her power. However, everything is not so simple... A few days later, a real commotion begins in the clinic: another student is poisoned!..