8La vida de Lucas, cercado por su tendencia a la introversi n y hundido en la pasividad, cambia abruptamente cuando llama a su puerta Sof a, una chica de catorce a os que acaba de perder a su madre y que es la hija que, sin saberlo, ha engendrado con una mujer de la que se enamor en su juventud y nunca volvi a ver. Con vaivenes, marchas y contramarchas, se va tejiendo poco a poco la confianza y se develan los secretos escondidos en las historias de Lucas y Sof a. Juntos encontrar n el tesoro de las afinidades y la complicidad que, sanando las heridas del desamor y la verg enza, les permitir dejar atr s el pasado. ENGLISH DESCRIPTION Lucas's life, closed off by his tendency for introversion and buried in passiveness, changes abruptly with a knock on his door. Sof a, a fourteen-year-old girl who just lost her mother, is the daughter whom he unknowingly conceived with a woman he fell in love with in his youth and never saw again. With ups and downs, progress and retreats, trust is slowly woven and the hidden secrets of Lucas and Sof a are revealed. Together, they will discover the treasure of relationships and the mutual understanding that will allow them to leave the past behind them by healing the wounds of indifference and shame.