An experienced professional, private detective Tatyana Ivanova is confused and seriously outraged. A modest, kind teacher at an orphanage insists that she unintentionally took the life of her pupil. The “criminal” repeats by rote about her guilt and the details of what happened, the police, with a sense of accomplishment, are preparing to take the case to court, but the famous detective cannot be fooled. Tatyana is alarmed by the inconsistencies in the accused’s story, her excellent characteristics from her place of work, and also the fact that all this happened at the moment when the child’s natural father was preparing to take his son home...