Relaciones Peligrosas, originally known as Fisico o Quimica, is a Spanish-language telenovela produced by United States-based television network Telemundo Studios, Miami. It is an adaptation of the Spanish television series Física o Química.
It has Sandra Echeverría, Gabriel Coronel, Maritza Bustamante, Gonzalo García Vivanco, Jonathan Freudman, Mercedes Molto, Carlos Ferro, Daniela Navarro, Renato Rossini, Kevin Aponte and Ana Layevska in the leading roles of the plot.
The young Amanda Monteverde, after losing her mother and her brother, has to take care of her three younger sisters. To escape from that stormy past, they move to Nueva Esperanza, a small town that is starting in the oil industry. There he will experience even more difficult situations, but he will also know love in three men: Sacramento, the man who will be his faithful friend and his innocent love; Pablo Aguilar, the man who will be his madness and his passion, and finally Don Rafael Urrieta, the most powerful man in the town, who will try to be practically his master and master as he is of most of those lands.
Amanda will have to grow, look for a future and happiness in the village. The first attempt to find this happiness is made by trying to enter a bar in the village, "Las 4 P", where the locals try to achieve a more cheerful life, along with music, liquor, singing, the dances and "the women of the consolations". This is the name with which Amanda began to call the profession of the two women, Sara and Calzo
The story of Captain Amalia Ortega, leader of a secret unit, whose mission is to capture the most wanted Mexican drug trafficker, putting both her profession and family's life at risk.
Rosa is abandoned as a baby at a boarding school along with a payment of 18 white diamonds. Her mother is Rosaura Sotomayor, a distinguished socialite who needs to hide the fruit of her affair. Rosa grows up and befriends Eva Sotomayor, and both girls vow to live as sisters. Their lives change after they meet José Ignacio Altamirano, an attractive, intelligent and conquering man who takes advantage of Eva’s innocence. The rich heiress dies in a mysterious accident, and Rosa decides to take her identity to avenge her dear friend.
An engineer who works in a large construction company and a poor worker without aspirations both share a love that dared to go beyond all prejudices and differences. Based on the Chilean TV series of the same name.