Tight-knit siblings Violet (Alicia Silverstone) and Grace (Sienna Guillory) have effectively removed themselves from society, living in a rambling house from which they're hardly seen leaving. But they have a plan for their voluntary seclusion. When they bring home an unsuspecting young man, Luke (Joe Anderson), to impregnate one of them, his presence introduces a new dynamic, and the recluses find their sisterly bond tested.