María Clara González works as head of nurses in one of the most recognized hospitals in the city: the Santa Rosa. Life would seem to smile at her were it not for the monotony into which her ma rriage with Román has fallen, with whom she has two children. On the day of her anniversary, María Clara makes the decision to win her husband back and reserves a hotel room to spend the night with him. However, Román suffers a heart attack at the scene and is transferred to an emergency to receive medical help. María Clara spends the night at his side. The next day, a woman named Paula arrives, accompanied by her young son, and tells the nurse that it is Román's first-born son. From there, Maria Clara becomes increasingly disillusioned with her husband, to the point of planning their divorce.