María Inés is trapped in the monotony of her 27-year marriage. Her husband, Ignacio, already has an escape in his mistress, Daniela, who wants more; a trip to Veracruz could change the situation.

María Inés's friends meet to decide whether to tell her they saw Ignacio with the other woman. Mónica, the youngest daughter, also confronts her father, but isn't clear about what she knows.

Ignacio's decision about the Cuernavaca house upsets María Inés, but there are more problems in that family. Paulina tells María Inés she saw Ignacio. Rosario downplays its importance.

María Inés doesn't hold back; she asks Ignacio about the other woman. He tells her that's not the problem. Daniela isn't happy with Ignacio's response; she demands he give her her place.

Andrés invites his mother to see him play. Among those present is Alejandro, who tries to meet her. María Inés wants changes in her relationship; she gets a new hairdo and buys sexy lingerie.

María Inés sends everyone away so the house is empty for her and Ignacio, but he doesn't remember the date. Daniela isn't going to leave Ignacio; he says it's for the best. Mónica has an accident.

At Paulina's gathering, Alejandro seeks Ignacio's attention but gets María Inés's instead. He, however, doesn't abandon his journalist role. Daniela calls desperately; she feels alone.

Ignacio is determined to end his relationship with Daniela. María Inés knows it's not entirely true and wants details. Mónica reproaches her mother for not trying harder to save the marriage.

The article surprises Ignacio but especially María Inés, who goes to confront Alejandro in person. He tries to explain himself. Ignacio tells his wife he's leaving to make a decision.

María Inés's mother, Elena, believes her daughter should act as if the other woman doesn't exist. Ignacio is ready to make the last big mistake of his life. Tension between the siblings grows.

Both Mónica and Adriana are convinced that their mother didn't give their father what he needed. Ale and María Inés meet at Paulina's house. The encounter brings them closer.

After María Inés argues strongly with Ignacio, Alejandro goes after her. Soon he's the one confronted. Both begin to feel strongly for each other but don't dare take the step.

The phone call lifts María Inés's spirits, though she only dares tell Alejandro she's crazy. Rosario gets a surprise at Dr. Hernández's office.

Ignacio thinks his gesture will be appreciated, but Mónica loses control seeing her new car. She considers it buying her silence and angrily rejects it. She wants her mother to forgive her father.

Alejandro takes María Inés to Cuernavaca. Mónica might be there. The girl doesn't want him there. Her relationship with her mother is tense because she believes she's not doing enough.

Back home, the daughters bring Ignacio up to speed about who accompanied their mother. He reproaches her behavior and also Mónica for creating problems for her mother.

Ignacio asks María Inés to meet at Francisco's house. His friend is offended and she reproaches him for involving their friend. In response, he says Francisco already knows about Daniela.

Anxious to make his relationship public, Ignacio gets Francisco to invite him to his house with Daniela. She doesn't expect to see María Inés there. The dinner becomes uncomfortable.

There's only one place in the world where María Inés wants to be right now, although Alejandro warns her that tonight he returns to Spain. María Inés takes him to dinner at her house.

Problems with her daughters overwhelm María Inés and she doesn't know what's happening between Andrés and Paulina. Elena goes to see her daughter to tell her she can't do anything more for her.

María Inés and her friends discuss what it means to be single women in their society, the criticisms and prejudices they face. Alejandro returns from Spain with news.

María Inés and Alejandro take their relationship to a new level. The experience is both liberating and frightening for her. Mónica discovers something that disturbs her.

Flashbacks show the evolution of María Inés and Ignacio's marriage over 27 years, from passionate beginnings to routine disappointment.

María Inés tries to convince herself that her children are coping well with the separation, but the signs suggest otherwise. Adriana faces her own challenges.

Adrián and Mónica react very differently to their parents' separation. While one seeks to understand, the other seeks to blame. Family tensions increase.