After proposing to his girlfriend, Dojin wakes up the next morning in a strange house with no memory of how he got there. When he asks about his fiancée, her brother Ju-yeon gives him a chilling answer: “She’s dead.” But Dojin can tell immediately that Ju-yeon is hiding something. Stranger still, Dojin has been having vivid, recurring dreams in which he and Ju-yeon share a bond that goes far beyond a typical in-law relationship. As he digs deeper, the secrets Ju-yeon reveal will turn Dojin’s entire understanding of his love and his life on its head.