The movie follows the story of Shirley, an all-around house helper who answered an ad for a quick three-day job to take care of a sick man. Ellen, the inhospitable wife, readily tells her the three important house rules: First, keep the doors and windows shut; second, stay locked inside the house; and third, don’t get inside their room without permission. Shirley shares a room with the couple’s young daughter and observes that the child is a terrified mess. She tells Ellen about it, only to be forbidden to interfere in whatever she sees going on around the house. After the child tells Shirley that the man is not her father, nerve-racking incidents one after another are revealed to her. And she will not be spared from it. (Source: ManilaStandard)