It turns out that this ordinary cleaner is a woman with an IQ of 160, which paradoxically complicates her life because she has a big problem with listening to authorities and managing her behaviour. However, the police department sees her intelligence as an asset and offers her a position as a detective consultant. Nikol accepts this position on the condition that the police department will help her in the search for the father of her first child, who disappeared 15 years ago while she was pregnant. Even though the police investigator she is assigned to, Adam, is not thrilled with her presence, their investigative work yields excellent results, and their relationship turns from colleagues to will-they-wont-they romance.