A woman puts everything on the line to achieve her goal of being able to move into a luxury penthouse in the Gangnam District. In the process, she gradually finds herself turning into a monster.

A former U.S. Marine, Lázaro Mendoza, enters a maximum security prison in Mexico (La Rotunda), under a false identity and accused of an alleged triple murder. Now as Dante Pardo, his mission is to infiltrate a dangerous band of inmates and guards that operate inside and outside of prison who are the prime suspects of the kidnapping of the teenage daughter of U.S. Judge, John Morris. Inside La Rotunda, Lázaro has to find out who carried out the kidnapping and the whereabouts of the girl.

Eda, who ties all her hopes to her education, confronts Serkan Bolat, who cuts off her international education scholarship and leaves her with high school diploma. Serkan Bolat offers Eda to give her scholarship back if she pretends to be his fiance for two months. Although Eda rejects the offer of this man as she hates him, she has to accept it when the conditions change. While pretending to be engaged, Serkan and Eda begin to experience a passionate, challenging relationship that will make them forget all they know right. Because love is difficult. And that's why it's amazing.