‘Pim’ buries her past in Thailand and starts her new life with a caring and lovable husband, ‘Wee’, in Korea. Their marriage life seems to be all good and normal until she gets a call from Thailand informing that her mother has fallen very ill. Pim and Wee then fly back to her hometown to be by her mother’s side. From the first moment she steps foot into her old house, Pim experiences extremely vivid flashbacks of painful memories that show how the bittersweet relationship with her conjoined twin sister and their commitment to stay together forever transform into a repressive bond that ultimately leads to a separation. Pim finds herself constantly haunted by these lingering feelings of attachment that compels her to confront her deep dark emotions. And this is just the beginning of a horrifying realization that Pim will never be allowed to ever forget…what does not want to be forgotten!