Luz Clarita is a sweet little girl who wants to find her mother and in her search will live through moments of great sadness and joy. Thanks to a series of coincidences, Mariano de la Fuente's family decides to open the doors of their home to the little orphan and although at the start it would seem that said girl only had come to create chaos in their lives, little by little they realize that she has arrived in order to teach them, the children and the adults the most important of lessons: that love is the essence of happiness.