Fernando Bonilla's life is more than perfect. He is one of those rare specimens that has made himself from scratch, which believes that when you give your word you must follow through, believes in respect and family love and in escalating new positions because they must be earned with hard work without owing anybody favors, and practices out of fashion values like honesty and loyalty. You can see through him, he hates lying and dislikes who ever needs to do so. He is extremely righteous, meticulous, and reserved, and this is why his temper seems to be strong or even sullen. Nevertheless this man is full of love and tenderness towards his home, next to his beautiful wife Bibiana and his daughter Matilde, building such an idyllic family life that some could envy. Because of these two ladies, and for now because of the baby Bibiana is expecting, he would kill "literally". He is an attractive man, those that get even better with age, he is tall, with athletic complexion, excellent physical condition, and necessary because of his constant occupations as the head of maintenance of "Ciclon's" entertainment parks, company he works for as a roller coaster designer. He was not made to wear a suit and a tie, and that's why he competes with Andres Arango, his eternal headache at "Ciclon". Fernando complaints all day long about "Arango" to his best friend, Angel Mistral, former classmate and best buddy for whom Fernando would risk his life. Fernando is what you could call "A man made of one piece". Or at least he used to be. Until Estefania Braun turns his life upside down and turns it into what Fernando would never desire even to his biggest enemy: A bottomless well full of horrifying secrets.
When Fernando saw Estefania for the first time, he never imagined that such angelical smile and that such beauty could hide a monster. He committed his only and worse mistake in his life for her: being unfaithful to his wife and having a night of unleashed passion with the devil itself. His luminous and see through life, begins to darken as continuous phone calls and weird apparitions from this lady take place, she seems determined to destroy his well-being at any cost. That obsession turns into an even darker shade, in a very confusing night for Fernando, since he was drugged by Estefania, he loses control after a heated argument and blacked out. As he recovers consciousness, the spectacle for Fernando is completely horrifying: Estefania is next to him laying over a puddle of blood, dead. Desperate, Fernando hurries to get rid of the body. With his soul torn to pieces due to the guilt he feels because of the crime he just committed, he tries to rebuild his life. He heads back home and makes a big effort to hide from his family any trace of the horror he lived that night, Fernando receives a note that says: "I did not like what you did to my corpse, today at six o'clock go to the place shown on the map, Don't you dare leave me hanging". And from this moment on the worst nightmare takes place. From that moment on, every minute of Fernando's life is a step closer to the hellhole Estefania Braun has thoroughly fabricated for him, and that appears to be a derailed roller coaster with a bad end.