Mariana salva la vida de don Alberto Salvatierra y él la invita a vivir a su casa, donde conoce a Luis Alberto.
Alberto, seeing that his son is not a man dedicated to the company's business, reproaches him for his lack of commitment. Mariana is threatened with eviction for not paying the rent and asks father Guillermo for help. Mariana arrives to meet with Alfonso Romano who tries to get out of line with her, but she puts a stop to him. Luis Alberto has a confrontation with his father causing him to feel sick. Alberto arrives at the neighborhood where Mariana is living to thank her for saving his life and when he sees that she has been left without a house he offers her his home. Mariana and her dog, Pulgoso, arrive at the Salvatierra mansion and meet Luis Alberto.
Na mansão dos Salvatierra, Luis Alberto tem um pesadelo com seu irmão se afogando quando criança. Enquanto isso, a jovem Mariana corre risco de ser expulsa do cortiço onde mora.
