Fisica O Quimica

Beginning of the school year. Irene, a 27 years old girl, wakes up in her bed next to a guy much younger than her who she met the night before.

Irene promised herself to not have sex again with Isaac, her student, but she can’t help it and fall into temptation again. She regrets immediately, especially when Isaac’s mother meets her and say that she’s worried about her son’s change of behavior.

Blanca, after his frustrated attempt to have sex with the physical education teacher, proposes him a dinner and something else. She is hell-bent on getting out of a sexual encounter with the boy.

Irene arrives at school determined to resign despite Blanca's advice. Upon arrival, he discovers that Clara has not been able to read her resignation email due to a mysterious virus.

Blanca and Irene continue with their respective emotional problems. The photos that Isaac took of Irene with his cell phone have begun to circulate around the institute, so Isaac tries to stop their disclosure.

Irene does not want to admit that she is jealous of seeing Isaac with Yoli. Yoli begins to have a strange behavior at school: she leaves the classes and disappears without giving explanations.

Irene is determined to get close to Isaac again. Isaac notices this change in attitude in his teacher and is receptive. Both Mario, Irene's boyfriend, and Yoli, the girlfriend and Isaac realize that their partners are becoming more distant and elusive.

Irene finds out the reason why Isaac has not shown up for their appointment. She finally realizes that she is in love with the boy and then does everything possible to get him back.