After returning from a business trip, Su Qi discovered that the temperament of the Samoyed Xifu she had raised for six years had changed drastically. She was afraid of men, avoided her boyfriend, and had a loss of appetite. A cryptic comment warned her that "something is wrong with the dog," and a physical examination revealed foreign objects and trauma inside her dog's body. Under the step-by-step guidance of her anonymous friend "B", Su Qi secretly installed surveillance cameras, but witnessed her boyfriend doing weird things to the dog. As the investigation deepens, she becomes involved in a deadly game between her ex-boyfriend and her current boyfriend over cutting-edge technology. Trust has collapsed, the truth is horrifying, and she, who seems innocent, may be the most thoughtful and fearful chess player in this game.
