Mia is happy to be able to spend a vacation with her dad, but Lupe, Mercedes, Juanma and Alvaro arrive by surprise at the same resort... and bring the school drama with them!

Lola and Cuau, a progressive middle-class pair, and Iñigo and Majo, a young conservative, well-heeled duo, turn to artificial insemination as a last resort to have children. In a madcap twist based on actual events, a mix-up at the clinic results in each mom-to-be carrying the other one's baby.

Lucero’s life appears immaculate: a wealthy household, a devoted husband, and two children who embody the promise of a perfect family. Yet beneath this surface simmers a quiet dissatisfaction. When Matías, a young swimming coach hired by her husband, enters their lives, Lucero finds herself pulled into a risky and consuming relationship. As secrecy, desire, and jealousy tighten their grip, the boundaries within the family begin to collapse, placing mother and daughter in a dangerous emotional triangle that threatens to shatter everything Lucero has built.