Through a third person narrator the film develops, with memories that come with a flashback, the detective of the case who tries to dissuade his daughter who is about to get married in the church not to get married, tells her this charming love story that becomes so interesting that the daughter dressed as a bride is intrigued by the facts of the case where her father participated and wants to know everything that happened and that is when the story comes.

The protagonists of the film are the couple who manage to overcome the illness of their only son who is already a teenager, Leonora is the mother who in her youth was an outstanding violinist and had a brilliant career that she postponed to take care of her son while her husband Christian is a civil engineer who created a construction company with a friend and with which they have had economic and social growth, But he becomes romantically involved with one of his workers, a young architect and single, losing his head out of passion, he stops feeling love for his wife and does not want to stay with her, but getting divorced is not so easy, Xenia (the lover) pressures him and wants him to divorce her, they have been in this relationship for almost a year now.

The whole conflict begins when Xenia sends a message to Christian at late hours waking up Leonora and making her suspicious, there they begin to fight and the alarms of an infidelity are turned on, Leonora who is the wife likes to exercise and goes out every morning or afternoon to run. One day they have a party to celebrate the successes of the company and the husband shines in the speech praising his employee the architect who is his lover, all in the presence of his wife, in fact he is a shameless that not satisfied to show so enraptured by this woman in full party they escape to an office to have sex, as the wife already had her suspicions follows them and meets the worst scene she can see; however, this is controlled and just watch in silence without saying a word, but the lover sees her and both stare at each other.

This is mind control, it is the mind control of a cold-blooded murderer, because I at least throw a heel at them; returning to the story, the wife acted as if she had not seen anything and after a few days she asks the husband directly if he had sex, but he denies it, obviously men deny this to death, she runs him out of the house and asks him for a divorce, but there is the real problem; who will benefit more from a divorce, he or she, if they divorce, the husband continues with his company, his son and his new girlfriend, and what is left for the wife? , She put aside her career to take care of her son, up to this point I understand Leonora, but I don't understand what she gains by having someone by her side who doesn't love her and will continue to cheat on her.

They separate anyway, but the man does not want to lose anything, he wants to stay at home and keep his mistress, his wife pressures him and takes him out of the closet as we say in my country, she reminds him of a fraud he committed to apply for a loan and thus have capital for his company, she told him that if he divorced she would denounce him and he would go to jail. The husband with such pressure only imagines a way out and plans the murder of his wife, the problem is that he kills someone by mistake, and this unleashed a series of increasingly critical and compromising events, the wife realizes that he wanted to kill her and has the evidence that condemns him so she wonders how she can live with the fear that he will kill her someday.

Leonora is not the typical innocent wife and victim of the story, she designs a macabre plan for her husband not to leave her and be faithful to her forever, besides they get out of everything unscathed, this is a movie that makes you think about the evil behind people and love and money as the main motive of crimes, I left me thinking was the title of the film, why adult love? Will it be because of their ages, actually this is far from adult love.