Overview

Dr. Antonia Mayot is too independent to be told what to do, which is why she has trouble following orders, especially when she doesn't like them. 

Officer Sandra Cruz has only been with the National Police in Madrid for a short time and couldn't be happier with her new assignment, until she's told that she has to become Antonia's shadow.

Ignoring the fact that their first encounter begins with an argument, the relationship between Antonia and Sandra is always tense because the doctor can't stand having someone breathing down her neck, and the police officer gets frustrated every time Antonia tries to give her the slip.

In the midst of so many arguments, an attraction begins to develop between them that neither is able to ignore, despite Antonia trying to convince herself that it's something temporary that she can control. However, Sandra is stubborn and not willing to step out of her way so easily.