To pay for her grandmother’s medical bills, university student Su Wan takes a part-time job at a veterinary clinic. Because her eyes resemble those of Lu Chenzhou’s dead dog, Snowball, the rich heir hires her as a “live-in pet” for a monthly salary of 100,000 yuan. Lu Chenzhou demands that she imitate Snowball in every way, from barking to wearing a collar. But in her luxurious cage, Su Wan gradually discovers that Snowball’s death was no accident. A recording of Lu Chenzhou’s mother, a deformed “young master” who wears an urn, and the eerie green glow of an underground laboratory: layer upon layer of conspiracy draws her into the twisted past of the Lu family. When she clutches a USB drive and plunges into the abyss, she realizes she is not merely a substitute, but also the key to awakening a buried secret. Those eyes that so resemble Snowball’s are leading her toward the ultimate struggle between life and death. This is manipulation in the name of love, a brutal bargain between soul and survival. When the ice pick of truth pierces the façade, can Su Wan tear through the veil of darkness shrouding the Lu family?