Lian, a thirty-year-old who runs a perfume business in the US. While looking for an assistant, she meets Eun-Seo who is studying abroad in the US. From the first time they meet, the much younger woman who flirts with him is funny, but they go to a hotel together. However, at the hotel, Eun-Seo reveals an unexpected secret and slowly strangles Lian, who is terrified. How will the fatal yet inescapable relationship between Lian and Eun-Seo develop?(Source: Kakaopage, translated)