Meg Altman (Jodie Foster) moves into a new house with her daughter Sara (Kristen Stewart). Some people break into the house their first night there, expecting the place to be empty. They know there's a lot of money in a secret safe in the house's panic room. Meg locks herself and her daughter in the panic room, so the thieves spend a lot of time trying to get in, or to get Meg to come out. That's about all I can think to say. It's not a bad movie.