A young woman, Dina Cheremisina, dies after swallowing pills. A typical suicide—this is the conclusion reached by doctors and the police. Only Dina’s friend, Lera, doesn’t believe it, and at her request, private detective Tatyana Ivanova joins the investigation.
Getting stuck due to the complete absence of suspects—and as usual asking for help from a policeman, Andrey Melnikov—Tatyana accidentally delves into the problems of her acquaintance. He is unsuccessfully trying to solve a series of robberies committed by a certain fatal brunette. Paradoxically, two different crimes come together into one chilling story…