Paz Roble, a kind, hard-working and honest woman from whom her husband, Fermín, takes her newborn daughter. Fermín has a large debt with some lenders and to pay it he decides to sell his daughter to Mauro Nicoliti. This plagiarism is orchestrated by Geneva, Mauro's adoptive sister. She lost her first-born daughter in childbirth and does everything to replace her dead daughter and keep her husband's fortune. On the other hand, Esteban Villa de Cortés loses his wife and becomes a widower with his three children. Elvira Moncada, Esteban's mother-in-law, holds him responsible for the death of her daughter. After a series of unexpected events, Esteban and Paz meet in the neighborhood where she lives with her family. The chemistry and great understanding that exists between them makes it inevitable that they will fall in love.

It's the '90s, and five losers run an illegal business at their high school. They sell homework and assignments to their classmates. The advantage is that no one ever suspects the nerds. Their business brings them money and popularity. But hormones and an unexpected death threaten to ruin everything. If the business collapses, their futures and their friendships are at risk.

Marigaby is a medical student by day—and by night, she saves lives with her family in Mexico City's high-stakes business of private ambulances. As pressure from both worlds threatens to drag her down, Marigaby will do whatever it takes to stay afloat.