Brand new factory sealed dvd Maria Bello is Sophie, a woman who struggles with bi-polar disorder as she tries her best to raise her son, Martin. A bizarre supernatural presence seems to have a connection to Martin, which causes him to stay up all night out of nothing but pure fear. Martin's half-sister, Rebecca, doesn't live at home anymore, not since her father took off years ago. Her relationship with Sophie is far from perfect, but once this entity starts making its presence known, she gets pulled into the plot too. This would all seem to have something to do with the film's opening scene, where we see Paul, Martin's Father, killed while staying at work late one night, an eerie silhouette of a woman lingering in the warehouse. As things intensify, Sophie stops taking her medication and begins conversing with an imaginairy friend she refers to as Diana. When Rebecca tries to get Martin out of the house, things go from bad to worse. Although Rebecca learns that this spirit will vanish once the lights are turned on, there's more to this than that as the family's past quickly catches up with them.