In 1940, a man builds a mansion on a remote island for his wife. After her death, the mansion falls into oblivion until a mysterious manager turns it into a place of lodging, inviting people who must find love. Among the guests are Choi Baek-tan and Yang Suzy, who discover a mother-of-pearl cabinet on the second floor and have a passionate encounter wearing antique clothes. However, after this encounter, she notices her partner behaving strangely, leading her to wonder about the identity of another being who seems to have been waiting for her there for a long time.