After five years of marriage, Lin Xiaoran and her husband built their lives from nothing. Once she became pregnant, she stepped back from the business. But when her husband returns from a business trip, he seems like a different person—forgetting her habits, losing his wedding ring, making mistake after mistake at work, and with a suspicious figure lingering by his side. She assumes betrayal and investigates in secret, only to discover that the man beside her is hiding an even bigger secret. Funds have been transferred away, her husband has vanished, and everyone around her has their own agenda. Suppressing her unease, she sets trap after trap to test them. When the person closest to her becomes the most dangerous stranger, who can she trust? Her child, the company, her missing husband—can she uncover the truth while keeping everything safe?