Chen Ye, a rehabilitation trainer, is simply completing a client's scheduled training session when he unexpectedly witnesses Su Wanqing, chairwoman of Su Medical, being forced by her husband, Fang Qiming, to sign an authorization letter in an underground parking garage. He intervenes to save her and sustains an abdominal injury, becoming entangled in a carefully orchestrated plot to destroy him. Secretly recorded footage is maliciously edited, a fake IOU for 500,000 yuan spreads across the internet, his work is suspended, and his mother's address is leaked. Step by step, Fang Qiming portrays him as a homewrecker who used private training sessions to approach a married wealthy woman, hoping to destroy Su Wanqing's credibility through public opinion and seize control of her company. Su Wanqing does not use emotional appeals to bind him to her. Instead, she signs a thirty-day security consultant contract with him.