One night. That’s all it was supposed to be. FBI Special Agent Cassandra Blake never let herself slip. Until the night she met him. Mysterious, devastatingly charming, and sinfully irresistible, Adrian Moretti was a stranger with secrets and a body built for sin. But when she shows up at a crime scene the next morning and finds him surrounded by blood and secrets, she learns the truth. Her one-night stand is the heir to the Moretti crime family. Now her mission is clear: infiltrate, expose, and take him down. But Adrian isn’t just dangerous, he’s magnetic. And as their worlds collide in a twisted game of lies and seduction, Cassandra must make an impossible choice: bring justice to a world of crime… or surrender to the man who could destroy her.

Martina Santiago is a simple, modest and well brought up girl by her parents "Hilda and Alfred Santiago." Well Martina hasn't really experienced the outside because her parents restricted her from going out and making friends in the neighborhood. According to them, they were trying to protect her from "the dangerous and evil world." But deep down they knew what they were really protecting her from. HER OWN SISTER. "Melissa Santiago." 18 years ago before Martina was even born, Hilda had a daughter, but she grew up becoming their worse nightmares. Out seeking revenge on her own Family because her mom got married to her boyfriend, yes, "Alfred" was her boyfriend, Hilda got married to him. Is Melissa really plotting revenge against her family and out against innocent Martina or there's more dark secrets to it? And how would this affect the relationship between Martina and Dominic Castellano, a ruthless, feared and dangerous but soft hearted billionaire.