Working at the police station one evening, a cleaning lady, Nikol Tichá, cannot resist the urge and scribbles down her ideas on the current case, which will help the police to solve the crime. It turns out that this woman has an IQ of 160, which paradoxically complicates her life because she has a big problem with listening to authorities. The police sees her intelligence as an asset and offers her a position as a detective consultant. She accepts on the condition that the police reopens the case of the father of her first child, who disappeared 15 years ago while she was pregnant. Despite the fact that the police investigator, Adam Kadlec, to whom she was assigned, is not enthusiastic about her presence, their investigative work brings results and over time Kadlec comes to like her.
—TV Markíza