On the family reunion housewarming night, Paige hurries home to claim the apartment her parents promised her. Yet no matter if she takes the elevator or the stairs, she cannot reach the 20th floor — it was the very place where she fell to her death in her past life. Reborn, she investigates the "vanished 20th floor" again, only to run into a string of uncanny incidents: her family failing to recognize her, alternate parallel universes, and even being committed to a psychiatric hospital.
Eventually, Paige uncovers the truth. The whole ordeal is an elaborate scam plotted by her parents, brother, and the Brooke family to seize her property and ten years of savings. They switched building numbers, tampered with the elevator, used hallucinogenic mushrooms, and hired fake doctors as part of the scheme. Paige exposes their conspiracy, cuts all ties with her family, and strikes back powerfully in her true identity as the lead of the Northbridge core project, reclaiming her life.
