Inspired by true events at the most haunted house in history. On an isolated stretch of land 50 miles outside of San Francisco sits a house that knows no end. Built by heiress Sarah Winchester, it stands seven stories tall and contains hundreds of rooms, staircases to nowhere and doors that open into walls. Unbeknownst to many, Sarah was building a prison, an asylum for hundreds of vengeful ghosts, and the most terrifying among them have a score to settle with the Winchesters. Starring Helen Mirren, Jason Clarke, Sarah Snook.