I saw this movie in 2008 or 2009. I remember there was a disfunctional family, (composed by a father and a daughter and a son, all of them grown ups, i think. i dont recall someone else), and there was a closed door in the house that had weird inscriptions on it. Someone in the family went inside the door, and never came out. Im thinking the woman was pregnant or had a child, cant remember well. At some point, they find out they cant get out of the house. More people got into the room, and never came out. I think the woman is the last one to go in.