Kim Ha-na, daughter of Youngshin Group, mysteriously disappears right before her engagement party, sparking rumors that she fled for love with Park Woo-jin, the temporary president of Samjung Group. Ha-na reveals she proposed a contract marriage to Park Woo-jin but was locked in a room by him. Trapped and desperate, she struggles to escape her confinement, refusing to give up despite being monitored closely. Meanwhile, Park Woo-jin’s associates ensure the news of her disappearance spreads strategically while guarding a secret about a necklace. The episode ends with Ha-na’s increasing determination to break free, raising questions about her fate under tight surveillance.