Sophie Grant replaced the runaway twin sister and became Harold Fitzgerald's substitute wife. For three years, Harold cared about his lover Hope Sutton and treated Sophie coldly and harshly, but she endured fulfilling the contract in exchange for 30 million and freedom. After the task was completed, Sophie quietly disappeared and started a new life. After her sister Blair Grant returned, the conflict with Harold's lover intensified and the truth was unexpectedly exposed. Harold learns the truth and strives to seek opportunities for reconciliation.