In the center of the plot is the metropolitan major Aleksey Potapov and a girl from a small provincial town, Lyusya Nekrasova - at first glance, a strange tandem engaged in the investigation of complex crimes. Lyusya is an unusual girl: she sees people, places, details of crimes. Having described with absolute accuracy the place of the murder of her own sister, Nekrasova becomes an indispensable police officer, which her boss, Potapov, categorically disagrees with, accustomed to believing only irrefutable facts, and not some kind of visions and premonitions. But soon he is forced to admit: the abnormal "fortune teller" is increasingly right.