Eun-ji and Seung-ho, Seong-sik and Joo-ran move into a neighborhood at similar times. Eun-ji is lonely because of her husband's frequent late-nights and Seong-sik takes care of the house while his wife works. 　　One day, Seong-sik goes over to Eun-ji's house to return a package but end up drinking wine with her. Seong-sik drunkenly kisses Eun-ji and the two spend a night in each o...