Lorena and Sara were raised together in an orphanage, and even though they have totally different personalities, they love each other like sisters. Lorena dreams of starting her own family and she loves to cook. Sara is more materialistic; she has always hated the poverty of the orphanage, and she has more ambition than scruples.
Lorena’s greatest wish is to become a chef, and so, one day she says goodbye to the nuns that raised her and leaves, to study haute cuisine in Mexico City. That same day, the Mother Superior discovers that Sara has stolen all the funds of the orphanage. When she confronts Sara, she suffers a heart attack and dies. Sara runs away with her lover and accomplice, Chalo, the driver of the orphanage. To erase all trace of her presence, she steals her file and Lorena’s. When she reads them, she learns that she was found in a garbage dump, but Lorena was abandoned in the orphanage without explanation by her grandmother, the millionaire Hortensia Armendariz. Sara’s first impulse is to find Lorena and help her confront her grandmother and demand her rights, but then she reconsiders her options and decides to usurp her place in the Armendariz gastronomic empire.
Totally unaware of this, Lorena finds work as a cook’s aid in her grandmother’s company. She also meets a young doctor called Alonso and they fall in love with each other.
Sara has an unexpected reunion with Lorena in the company, and the girl’s constant presence infuriates her. Sara’s mind betrays her and she is gradually overwhelmed by a desire to take everything away from Lorena, including Alonso, and get rid of her once and for all. When Lorena learns that Sara was abandoned by her grandmother, she cries for her friend and is filled with contempt for Hortensia. Meanwhile, Hortensia uses all her resources to avoid confronting the pain she has caused to everyone around her.
When Lorena discovers Sara’s evil machinations against her, she realizes that she never truly knew the one she loves as a sister. But is spite of her broken heart, she will bravely face betrayal, deceit and cruelty. And she will find new hope, hand in hand with someone she never expected to love her.