Barron Drake, a billionaire, despises his mute wife, Elza Stark, unaware she's "The Zero," a secret genius protecting him while destroying his rivals. After Elza saves him from a poisoning attempt, Barron begins to suspect her hidden capabilities. Elza, using her financial prowess, humiliates her step-family at a gala, acquiring her mother's burial plot and exposing their secrets. Barron, realizing her true power, becomes possessive. Elza further demonstrates her genius by saving a girl's life, though an old acquaintance, Ivy, steals the credit. Barron, now fully aware of Elza's dangerous intellect and independent agenda, uses her as Executive Producer to dismantle the Schmidts' film project. Elza, in turn, fires Clotilde and exposes Victoria's adoption secret, securing her mother's grave and her parents' accident report. Barron, seeing her as a valuable asset, vows to protect and control her, offering information about her past in exchange for her loyalty.
