A tale of two sistersA tale of two sisters

"Something strange is happening when Su-mi and her younger sister, Su-yeon, come home to their father's large but dark and somewhat foreboding house after a stay in the hospital. Their dad is taciturn and burdened, and their stepmother, Eun-joo, greets them with forced enthusiasm and more than a little sense of irritation. But that's nothing compared to what happens when bedtime rolls around."--Container.