Emma loses her entire family when her beloved sister dies under suspicious circumstances tied to the wealthy Kane household. Driven by grief, she accepts an alliance with Roger, a cold strategist harboring his own vendetta against the dynasty. To infiltrate high society, Roger molds Emma into the spitting image of his deceased mother, pushing her through grueling etiquette drills and psychological tests designed to erase her old self.
Planted inside the enemy's inner circle, Emma gathers financial evidence while playing a dangerous psychological game with corrupt patriarchs. Her mission grows perilous as genuine feelings flare between her and her demanding handler, blurring the line between puppet and partner. Surviving the mansion requires exposing the murder without losing her sanity in the process.
