Rubí is a pretty girl who lives with her mother, Raphaëlle, and her sister, Christina. Her mother is a reserved, hardworking, and traditional woman, and her only desire is to see her daughters lead a simple and quiet life. She loves her two daughters but feels closer to Christina.
Spoiled in her childhood by her father, Rubí has always been used to getting what she wants. Since his death, Rubí has struggled to accept the disastrous financial situation in which her family finds itself. However, her mother and sister do their best to make her life easier. Christina, by working day and night, provides for the family’s needs. Thanks to this income, Rubí has received a scholarship to continue her studies at a private university. She now has only one ambition: to become a rich and envied woman.
At the university, she befriended Maribel de la Fuente, a pretty girl who is especially wealthy. She lost the use of her left leg after a car accident in which her mother died. She lives with her father, Arthur, and her governess, Paula, who watches over her because she is wary of Rubí. Maribel thinks she has found in Rubí more than a friend, a sister. She does not see that Rubí is a mercenary and calculating woman.
Because of her disability, Maribel is a shy girl who lacks self-confidence. She met a certain Hector online. Handsome, bright, wealthy, and passionate, Hector is a talented architect. Over the months, they’ve become more than friends...
Determined to meet Maribel, Hector arrives in Mexico with his best friend, Alexandre Cardenas, a young orthopedic surgeon. He is a self-confident, determined, and intelligent man. There is an immediate spark between Rubí and Alexandre. Unfortunately, Rubí learns the hard way that Alexandre is not as wealthy as he seemed to be!
Rubí then has to choose between marrying the man she loved and pursuing her dream of becoming a rich woman... so she does everything to flirt with Maribel's boyfriend, Hector, and steals him away, even though she is still crazy about Alexandre; she stays with Hector for his money. After that, everyone hates Rubí even more, and as the episodes progress, one can see Rubí's machinations and the tragic end she will face.