The story of Sarah Kim who wanted to embody luxury, even if it meant being fake, and Park Mu Gyeong, who traces after her desires. Sarah Kim is a mysterious character whose name is everywhere, yet she can't be found anywhere. As the head of a high-end brand's Asia branch, she suddenly becomes the victim in an unidentified murder case. Park Mu Gyeong is a sharp and persistent detective in the violent crimes unit. As Mu Gyeong delves deeper into the case, Sarah Kim's mysterious identity — involving different names, ages, jobs, and backgrounds — is gradually unveiled. Who is the real Sarah Kim, and what secrets is she hiding?