Two sisters, Su-Mi and Su-Yeon come back home having recovered their health after a bout of illness. Eun-Joo, their stepmother, welcomes them, but Su-Mi, the elder sister, intentionally avoids her and Su-Yeon, the younger one, seems to be fearful of her. On their first night, Su-Yeon feels there is someone in her room and Su-Mi sees the ghost of her dead mother. Strange things begin to happen. The stepmother assumes the sisters are behind these creepy incidents. One day, while their father is out, Su-Yeon disappears. And then, Su-Mi spots Eun-Joo dragging a big bag, leaving bloody stains behind.