Damien's life was ruined two decades ago by double betrayal: Damien’s sister Serena and his friend Ethan, who loves secretly without telling his brother, were run off during Serena’s wedding, stealing a crucial contract that devastates Damien’s family and business empire. Before Serena’s wedding, William and Damien agree to exchange a $10 billion project if Serena marries Williams. However, after learning the truth and reading the shocking letter left by Serena, James (William’s father) lashes out in anger. It shoots Blackwood (Damien’s father), blaming him for the betrayal and the family's ruin. In that incident, James was arrested and sentenced to 24 years in prison. Damien was a kind and trustful man. After Serena’s Ethan’s backstabbed action, he was filled with anger and a thirst for revenge. He dedicated the upcoming years to working hard to rebuild his empire, becoming stronger and more ruthless. After 24 years, Damien puts his revenge plan into action by the same method she used. He sends his son Nate to infiltrate Serena's family by attending the college as her daughter, Evangeline. Nate is tasked with gaining her trust, falling in love with him, shattering her love, once she becomes attached to him, and learning everything about her family and business. But as old secrets resurface, Nate discovers harsh facts about his father's betrayals, compelling him to doubt everything. Meanwhile, a shadow from Damien and Ethan's past, James, reappears with his desire for vengeance, threatening to destroy both families in the concept of killing two birds with one stone. Betrayal by Love is a compelling story about love, vengeance, and the deadly consequences of justice. Who will ultimately triumph in this battle?

" I know I don't have much, Mr. Winter, but I can keep her happy. I'm graduating in a few months. I have an internship lined up. I'll work tirelessly; I can buy her anything she wants."  He pleaded with his eyes. "We made promises. She needs me. Please… don't do this to her. She can't handle …" he trailed off, the unspoken fear hanging heavy in the air.  A cruel smirk twisted Dante's lips. "Sorry, Lee. You don't understand. I just want to end this for your good." he reached into the car's glove compartment, pulled out a blank check, and signed it. "Fill in whatever amount you think is necessary but leave my daughter alone. Don't contact her ever again." Before stepping out, he turned towards him, his expression clearly judging him. "You can't even afford her hospital bills. Just think about that check. Never angel will knock on the door twice...."  Two years later, Zara became engaged to Adam Foley, who used his wealth to pursue her obsessively. This obsession made him the most disliked person during her teenage years, yet she remained unaware that she had been dating him for years due to her amnesia. Fate takes a dramatic turn when Min-Jun becomes her new boss on the cybersecurity team and devises a plan to win her back. Obsession of two men is the dramatic clash between a forgotten love and a present engaged love.