He is Martin Quesada, ex-F1 driver, now successfully managing the family business. he is a very kind person but since the death of his parents and his wife he is feeling an emptiness which cannot be filled neither by his girlfriend Constanza or his remaining relatives, cousins Miguel and Debi. after longer time abroad he comes back and in the hall of his firm he meets a girl who rocks his world completely. she is Esperanza Muñoz, la Monita, boxer who due to a hand injury is looking for a job. she lives with her long time boyfriend Quique and his mother Nieves in pension and dreams of a big boxing career. and the encounter with Martin rocks her world as well. Martin offers her a job and with this the problems start. because while Monita is trying to keep secret her boxing and her boyfriend from Martin, he is trying to convince his girlfriend that there is nothing going on between him and Monita. but what they cannot keep secret is their growing affection for each other.