My Foster Sister Locked Me in a psychiatric hospital I Stole Her Fiancé

Synopsis

Elinor Astor, matriarch of New York’s elite Astor conglomerate, offers a $50 million deal to stop heir Charles from marrying the scheming Olivia. She hires Evelyn Sullivan, a woman struggling in Brooklyn’s slums who was once confined to a psychiatric hospital by her foster parents. Evelyn’s mission: make Charles break off his engagement with Olivia of his own free will. Haunted by a decades-old blood feud, Evelyn accepts the bargain. While fulfilling her assignment and systematically shattering Olivia’s dreams of climbing the social ladder, she secretly gathers comprehensive evidence proving her foster parents and Olivia colluded to abuse her, unlawfully imprison her, and commit trust fund fraud. She waits for the perfect chance to reclaim her true identity and settle scores with everyone who wronged her. As Charles spends time with Evelyn, he gradually uncovers every underhanded trick Olivia has played. He falls for the resilient, trauma-burdened Evelyn, dragging them both into a whirlwind of conflict between two powerful families and the tangled secrets of the real and fake heiresses. All tensions erupt at an elite charity gala, where every long-buried conspiracy and identity scam is exposed to the world.