Rachel Martínez is barely holding her life together. Working two jobs, struggling with debts, and caring for her younger brother, Benjamin, whose heart condition requires expensive and urgent treatment, she is running out of options. When Benjamin's medical needs become more than she can afford, Rachel is desperate for a way out. Then a stranger walks into her life. A billionaire tech CEO who wants nothing to do with romance, but his grandmother wants to see him settle down, and Joseph needs a woman who can convince his family that he has found someone special. He offers Rachel Martinez fifty thousand euros to pretend to be his girlfriend. The arrangement should be simple. Rachel gets the money Benjamin needs, and Joseph gets the perfect girlfriend for his family. There are no feelings or emotions attached, but pretending to love someone becomes dangerous when the feelings start becoming real. As Rachel is pulled deeper into Joseph's world, his mother makes it clear that she does not belong there. His wealthy ex-girlfriend is determined to get him back. And behind the polished image of the Delgado family lies a secret that could destroy everything. Rachel only wanted enough money to save her brother. Joseph only wanted a woman to play a part. Neither had ever expected the fake relationship to become the one thing they could no longer pretend about.