Two young women, Kiki and Kkobbi, whose purpose and background are unknown, and even the nationalities are unclear, win a lottery ticket from an unknown cosmetics brand while traveling in Hong Kong. The lottery prize is a free vacation in a resort called Mui Wo. They do not know each other at first, but after arriving in the Mui Wo Inn, which has a mysterious atmosphere, they quickly begin to hang out together. The free vacation was scheduled for one night and two days, but they decide to stay on because of some unexplainable reason. In a completely isolated and unknown place, they start to experience an extraordinary adventure. Their story is sometimes fantasy, sometimes comical, and occasionally even turns to suspense and horror. In a situation where it is difficult to predict the development of their adventure, their relationship and feelings change little by little, while at the same time their inner conflicts and secrets are revealed. Finally, inevitably, their relationship has to end in a way that is completely unexpected.